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Troubleshooting

101

WiFi Cable Modem Router Model C3000v2 and C3700v2

Note:

If the IP address of your computer is shown as 169.254.x.x:
Recent versions of Windows and Mac OS generate and assign an IP
address when the computer cannot reach a DHCP server. These
autogenerated addresses are in the range of 169.254.x.x. If your IP
address is in this range, check the connection from the computer to
the modem router and reboot your computer.

•

If the IP address of your modem router changed and you do not know its current IP
address, clear the configuration of the modem router to its factory defaults. This sets the
IP address of the modem router to 192.168.0.1. For more information, see

Default Settings

•

Make sure Java, JavaScript, or ActiveX is enabled on your browser. If you are using
Internet Explorer, click the

Refresh

button to make sure that the Java applet is loaded.

•

Try quitting the browser and launching it again.

•

Make sure that you are using the correct login information. The modem router user name

admin

is lowercase (Caps Lock is off). The default password is

password

.

If the modem router does not save changes that you made, do the following:

•

When entering settings, make sure to click the

Apply

button before moving to another

page, or your changes are lost.

•

Click the

Refresh

or

Reload

button in the web browser. The changes might be saved, but

the web browser might be caching the old configuration.

Troubleshoot the ISP Connection

When your modem router cannot access the Internet and your Internet LED is on, register
the cable MAC address or device MAC address of your modem router with your cable service
provider.

Additionally, the modem router might not be specified as the TCP/IP gateway for your

computer. If your computer obtains its information from the modem router by DHCP, reboot
the computer and verify the gateway address.

Troubleshoot a TCP/IP Network Using the Ping Utility

Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request
packet to the designated device. The device then responds with an echo reply. You can
easily troubleshoot a TCP/IP network by using the ping utility in your computer or
workstation.

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Summary of Contents for C3700v2

Page 1: ...350 East Plumeria Drive San Jose CA 95134 USA December 2016 202 11724 01 N300 WiFi Cable Modem Router Model C3000v2 N600 WiFi Cable Modem Router Model C3700v2 User Manual ...

Page 2: ... use only official NETGEAR support resources Conformity For the current EU Declaration of Conformity visit http kb netgear com app answers detail a_id 11621 Compliance For regulatory compliance information visit http www netgear com about regulatory See the regulatory compliance document before connecting the power supply Trademarks NETGEAR Inc NETGEAR and the NETGEAR Logo are trademarks of NETGEA...

Page 3: ...n 18 Perform a Speed Test 18 Chapter 2 Connect to the Network and Access the Modem Router Connect to the Network 20 Wired Connection 20 WiFi Connection 20 Label 21 Types of Logins 21 Log In to the Modem Router 22 Chapter 3 Specify Initial Settings Specify the Cable Connection Starting Frequency 24 View Modem Router Initialization 25 Specify the Internet Connection Settings 26 Specify an IPv6 Inter...

Page 4: ...a USB Storage Device 48 Chapter 6 Specify Network Settings View or Change the WAN Settings 50 Change the MTU Size 51 Set Up a Default DMZ Server 53 Change the Modem Router s Device Name 54 Change the LAN TCP IP Settings 54 Specify the IP Addresses That the Modem Router Assigns 56 Manage LAN IP Addresses 57 Reserve a LAN IP Address 57 Edit a Reserved Address Entry 58 Delete a Reserved Address Entry...

Page 5: ...Set Up Port Forwarding to a Local Server 90 Add a Custom Port Forwarding Service 91 Edit a Port Forwarding Service 92 Delete a Port Forwarding Entry 93 Application Example Make a Local Web Server Public 93 How the Modem Router Implements the Port Forwarding Rule 94 Set Up Port Triggering 94 Add a Port Triggering Service 95 Specify When to Use Port Triggering 96 Application Example Port Triggering ...

Page 6: ...nel C3000v2 Rear Panel C3700v2 Front Panel C3700v2 Rear Panel Position Your Modem Router Cable Your Modem Router Activate Your Internet Service Activate Your Internet Service With Comcast Xfinity For more information about the topics covered in this manual visit the support website at support netgear com ...

Page 7: ... router Ethernet cable Power adapter C3700v2 C3000v2 modem router modem router Figure 1 Package contents C3000v2 Front Panel The modem router status LEDs and buttons are on the front Figure 2 C3000v2 modem router front view You can control the LED settings For information about how to specify the LED settings see Control the LED Settings on page 87 ...

Page 8: ...ventilated area and power cycle the unit Off No power is supplied to the modem router Downstream Solid green One or more downstream channels are locked Blinking green The unit is scanning for a downstream channel Off No downstream channel is locked Upstream Solid green One or more upstream channels are locked Blinking green The unit is scanning for an upstream channel Off No upstream channel is lo...

Page 9: ...l connections and buttons shown the following figure USB port Ethernet ports Coaxial cable connector Power adapter input Power On Off button Figure 3 C3000v2 modem router rear panel C3700v2 Front Panel The modem router status LEDs and buttons are on the front Figure 4 C3700v2 modem router front view ...

Page 10: ...o connect to the modem router Power Green Power is supplied to the modem router Red Power is cut off due to a thermal error caused by heat Move the unit to a well ventilated area and power cycle the unit Off No power is supplied to the modem router Downstream Solid green One or more downstream channels are locked Blinking green The unit is scanning for a downstream channel Off No downstream channe...

Page 11: ...Off button Figure 5 C3700v2 modem router rear panel Ethernet Green A device is connected to an Ethernet port and powered on Blinking green The Ethernet port is sending or receiving traffic Off No device is connected to an Ethernet port USB Green A USB device is connected to the port on the back panel Off No USB device is connected to the port on the back panel Table 2 C3700v2 LED and button descri...

Page 12: ...s a WiFi signal for network access Position your modem router according to the following guidelines Place your modem router near the center of the area where your computers and other devices operate and within line of sight to your WiFi devices Make sure that the modem router is within reach of an AC power outlet and near Ethernet cables for wired computers Place the modem router in an elevated lo...

Page 13: ...ork To cable your modem router 1 Connect the antennas to the threaded antenna posts 2 Turn off existing modems and routers If you are replacing a modem that is currently connected in your home unplug the modem and plug the new modem router into the same outlet 3 Connect a coaxial cable Use the coaxial cable that is provided by your Internet service provider to connect the cable port on the modem r...

Page 14: ... the modem router to a cable wall outlet Make sure that the cable is tightly connected 4 Connect the power adapter to the modem router and plug the power adapter into an electrical outlet Make sure that the Power On Off button the rear panel of the modem router is in the On position The startup procedure takes about one minute When the startup procedure is complete the Power LED lights green 5 On ...

Page 15: ...xt button A Congratulations page displays your settings 14 Click the Next button The modem router connects to the Internet The BASIC Home page displays the status of the Internet connection 15 Select ADVANCED Administration Router Mode The Router Mode page displays 16 Select the No radio button With this setting the modem router works as a bridge and obtains IP addresses from the Internet service ...

Page 16: ... on page 17 Cox https activation cox net selfactivation start cox 1 888 556 1193 Mediacom https maestro mediacomcc com walledgarden page login jsp 1 844 2SIMPLE 1 844 274 6753 Time Warner Cable https www timewarnercable com en support internet step by step modem activation html 1 800 892 2253 Note Your cable Internet provider s contact information might change You can also find the contact informa...

Page 17: ...ctivate Your Internet Service With Comcast Xfinity Activate your Internet service by using Comcast XFINITY s self activation process If you are unable to self activate your modem router call Comcast XFINITY customer service After you complete the setup perform a speed test Before you start the self activation process make sure that your account number account phone number and login information you...

Page 18: ...ur account information and provide the modem router s model number and MAC address 3 Wait for Comcast XFINITY to confirm that your modem router is active 4 If you do not get an Internet connection with the modem router ask Comcast XFINITY to look for your modem router online and do one of the following depending on what Comcast XFINITY tells you about your modem router If the modem router is not v...

Page 19: ...19 2 2 Connect to the Network and Access the Modem Router This chapter contains the following sections Connect to the Network Types of Logins Log In to the Modem Router ...

Page 20: ... local area network LAN A message might display on your computer screen to notify you that an Ethernet cable is connected WiFi Connection You can connect to the modem router s WiFi network with Wi Fi Protected Setup WPS or you can find and select the WiFi network To use WPS to connect to the WiFi network 1 Make sure that the modem router is receiving power its Power LED is lit If the Power LED doe...

Page 21: ... types of logins serve different purposes It is important that you understand the difference so that you know which login to use when Types of logins ISP login The login that your ISP gave you logs you in to your Internet service Your service provider gave you this login information in a letter or some other way If you cannot find this login information contact your service provider WiFi network k...

Page 22: ...t is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The first time you log in to the modem router you are prompted to change the admin password and set up security questions You must enter these settings...

Page 23: ...nitial Settings This chapter contains the following sections Specify the Cable Connection Starting Frequency View Modem Router Initialization Specify the Internet Connection Settings Specify an IPv6 Internet Connection ...

Page 24: ...ce provider To change the starting frequency 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Sel...

Page 25: ...tream channels 2 Obtains a WAN address for the modem router 3 Connects to the Internet To view the status of the modem router initialization 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default passw...

Page 26: ...IC Home page displays 4 Select ADVANCED Setup Internet Setup 5 If your Internet connection requires an account name or host name type it in the Account Name If Required field 6 If your Internet connection requires a domain name type it in the Domain Name If Required field For the other sections on this page the default settings usually work but you can change them 7 Select an Internet IP Address r...

Page 27: ...site it is likely that your DNS servers are not set up correctly Contact your ISP to get the DNS server addresses Specify an IPv6 Internet Connection To specify an IPb6 Internet connection 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and p...

Page 28: ...is method passes more information to LAN devices but some IPv6 systems might not support the DHCv6 client function Auto Config This is the default setting This setting specifies how the modem router assigns IPv6 addresses to the home network the LAN 6 Click the Apply button Your settings are saved ...

Page 29: ...her devices that are connected to your network This chapter includes the following sections Set Up Parental Controls Use Keywords to Block Internet Sites Block Services and Applications From the Internet Schedule When to Block Internet Sites and Services Avoid Blocking on a Trusted Computer Set Up Security Event Email Notifications ...

Page 30: ... Enter the router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select Parental Controls The Live Parental Controls web page displays 5 Click the button for the app or version that you want to download and use 6 Follow the onscreen instructions to download and install the genie app 7 Open ...

Page 31: ...ntrols are now set up for the modem router To enable parental controls click the Enable Live Parental Controls button Use Keywords to Block Internet Sites You can use keywords to block certain Internet sites from your network You can use blocking all the time or based on a schedule Add a Keyword to Block To block Internet sites 1 Launch a web browser from a WiFi enabled computer or mobile device t...

Page 32: ... that you want to block For example Specify XXX to block http www badstuff com xxx html Specify com if you want to allow only sites with domain suffixes such as edu or gov Enter a period to block all Internet browsing access 7 Click the Add Keyword button The keyword is added to the keyword list The keyword list supports up to 32 entries 8 Click the Apply button Keyword blocking takes effect Delet...

Page 33: ...oved from the list 6 Click the Apply button Your settings are saved Block Services and Applications From the Internet You can block Internet services and applications on your network based on the type of service You can block the services and applications all the time or based on a schedule To block services 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to ...

Page 34: ...lect User Defined a If you know that the service or application uses either TCP or UDP select the appropriate protocol If you are not sure select TCP UDP both b Enter the starting port and ending port numbers If the service or application uses a single port number enter that number in both fields To find out which port numbers the service or application uses you can contact the publisher of the ap...

Page 35: ...ect ADVANCED Security Schedule The Schedule page displays 5 Specify when to block keywords and services Days to Block Select the check box for each day that you want to block the keywords and services or select the Every Day check box which automatically selects the check boxes for all days Time of Day to Block Select a start and end time in 24 hour format or select All Day for 24 hour blocking 6 ...

Page 36: ...dress of the trusted computer 7 Click the Apply button Your settings are saved Set Up Security Event Email Notifications The modem router can email you its logs The log records modem router activity and security events such as attempts to access blocked sites or services For information about logs see View and Manage Logs of Modem Router Activity on page 76 To set up email notifications 1 Launch a...

Page 37: ...equires authentication select the My Mail Server requires authentication check box and do the following a In the User Name field type the user name for the outgoing email server b In the Password field type the password for the outgoing email server 9 To send alerts when someone attempts to visit a blocked site select the Send Alerts Immediately check box 10 To send logs based on a schedule specif...

Page 38: ... to the modem router USB port This chapter contains the following sections USB Device Requirements Connect a USB Storage Device to the Modem Router Access a USB Drive Connected to the Modem Router From a Windows Computer Map a USB Device to a Windows Network Drive Access a USB Storage Device That Is Connected to the Modem Router From a Mac Control Access to the USB Drive Use FTP Within the Network...

Page 39: ...ter before the computer can access the USB device Such USB devices do not work with the modem router The modem router supports the following file system types for full read write access FAT16 FAT32 NTFS NTFS with compression format enabled Ext2 Ext3 Ext4 XFS HFS HFS Connect a USB Storage Device to the Modem Router ReadySHARE lets you access and share USB storage devices that are connected to the a...

Page 40: ...the USB storage device to the modem router s port it might take up to two minutes before it is ready for sharing By default the USB storage device is available to all computers on your local area network LAN 3 Select Start Run 4 Enter readyshare in the dialog box 5 Click the OK button A window automatically opens and displays the files and folders on the USB storage device Map a USB Device to a Wi...

Page 41: ...B storage device to the modem router When you connect the USB storage device to the router s port it might take up to two minutes before it is ready for sharing By default the USB storage device is available to all computers on your local area network LAN 3 On a Mac that is connected to the network select Go Connect to Server 4 In the Server Address field enter smb readyshare 5 When prompted selec...

Page 42: ... in an operating system that supports NetBIOS such as Microsoft Windows Access Method Select the check boxes for the access methods that you want Network Neighborhood MacShare Enabled by default HTTP Enabled by default You can type http readyshare routerlogin net shares to access the USB drive HTTP via Internet Disabled by default If you enable this feature remote users can type http public IP add...

Page 43: ... 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED USB Storage Advanced Settings 5 Select the FTP check box 6 Click the Apply button Your settings are saved View or Change Network Folders on a USB Drive You can view or change the ...

Page 44: ...ame is USB_Storage Some modem router models include more than one USB port You can click the name or type it in the address field of your web browser If Not Shared is shown the default share was deleted and no other share for the root folder exists Click the link to change this setting Read Access and Write Access Show the permissions and access controls on the network folder All no password the d...

Page 45: ...er name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED ReadySHARE The USB Storage Advanced Settings page displays 5 Click the Edit button 6 Click the Create Network Folder button If this window does not open your web browser might be blocking pop ups If it is change the browser settin...

Page 46: ... case sensitive The BASIC Home page displays 4 Select ADVANCED ReadySHARE The USB Storage Advanced Settings page displays 5 Click the Edit button The Edit Network Folder window opens 6 Change the settings in the fields as needed 7 Click the Apply button Your settings are saved Approve USB Storage Devices For more security you can set up the modem router to share only USB storage devices that you a...

Page 47: ...adio button 6 Click the Approved Devices button The approved and available USB devices display 7 In the Available USB Devices list select the drive that you want to approve 8 Click the Add button 9 Select the Allow only approved devices check box 10 Click the Apply button Your settings are saved 11 To work with another USB device first click the Safely Remove USB Device button for the currently co...

Page 48: ...fely 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select USB Storage Basic Settings The USB S...

Page 49: ...evice Name Change the LAN TCP IP Settings Specify the IP Addresses That the Modem Router Assigns Manage LAN IP Addresses Use the WPS Wizard for WiFi Connections Specify Basic WiFi Settings Change the WiFi Security Option Set Up a WiFi Guest Network Control the WiFi Radios Specify WPS Settings Set Up a WiFi Access List Dynamic DNS Improve Network Connections With Universal Plug N Play ...

Page 50: ...word are case sensitive The BASIC Home page displays 4 Select ADVANCED Setup WAN Setup 5 View or change the following settings Disable IPv4 Firewall Protection The firewall protects your network Firewall protection is particularly important if you use port forwarding or if you use a DMZ server Disable Port Scan and DoS Protection DoS protection protects your LAN against denial of service attacks s...

Page 51: ...accommodate the device with the smallest MTU The best MTU setting for NETGEAR equipment is often the default value In some situations changing the value fixes one problem but causes another Leave the MTU unchanged unless one of these situations occurs You experience problems connecting to your ISP or other Internet service and the technical support of either the ISP or NETGEAR recommends changing ...

Page 52: ... to experiment you can gradually reduce the MTU from the maximum value of 1500 until the problem goes away The following table describes common MTU sizes and applications Table 3 Common MTU sizes MTU Application 1500 The largest Ethernet packet size This setting is typical for connections that do not use PPPoE or VPN and is the default value for NETGEAR routers adapters and switches 1492 Used in P...

Page 53: ...puter can be used to attack other computers on your network The modem router usually detects and discards incoming traffic from the Internet that is not a response to one of your local computers or a service that you configured on the Port Forwarding Port Triggering page Instead of discarding this traffic the modem router can forward the traffic to one computer on your network This computer is cal...

Page 54: ...ogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Setup LAN Setup 5 In the Device Name field type a new name 6 Click the Apply button Your settings are saved Change the LAN TCP IP Settings The modem rout...

Page 55: ...s connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Setup LAN Setup 5 In the IP Address field type the IP address 6 In the IP Subnet Mask field type the subnet...

Page 56: ... devices with fixed addresses To specify the pool of IP addresses that the modem router assigns 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password ar...

Page 57: ...serve an IP address 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Setup LAN Se...

Page 58: ...lt password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Setup LAN Setup The LAN Setup page displays 5 Select the radio button next to the reserved address 6 Click the Edit button 7 Change the settings 8 Click the Apply button Your settings are saved Delete a Reserved Address Entry To delete a reserved address entry 1 Launch a web browser...

Page 59: ...he modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED WPS Wizard A page displays that explains WPS 5 Click the Next button The WPS page displays 6 Select the radio button for the setup method that you want to use Push button Click the WPS button on this page PIN Num...

Page 60: ...ID or other WiFi security settings you are disconnected when you click the Apply button To avoid this problem use a computer with a wired connection to access the modem router To specify basic WiFi settings 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem rout...

Page 61: ...etter if adjacent access points use different channels to reduce interference The recommended channel spacing between adjacent access points is four channels for example use Channels 1 and 5 or 6 and 10 10 To change the mode select it from the Mode menu Up to 145 Mbps is the default setting which allows 802 11n and 802 11g WiFi devices to join the network g b supports up to 54 Mbps The 300 Mbps se...

Page 62: ...assword is password The user name and password are case sensitive The BASIC Home page displays 4 Select WiFi The Wireless Settings page displays 5 Under Security Options select a WPA option WPA2 PSK AES WPA PSK TKIP WPA2 PSK AES The WPA2 options use the newest standard for the strongest security but some older computers and WiFi devices cannot use WPA2 By default the WPA PSK TKIP WPA2 PSK AES radi...

Page 63: ...ork 5 Select any of the following WiFi settings Enable Guest Network When this check box is selected the guest network is enabled and guests can connect to your network using the SSID of this profile Enable SSID Broadcast If this check box is selected the WiFi modem router broadcasts its name SSID to all WiFi stations Stations with no SSID can adopt the correct SSID for connections to this modem r...

Page 64: ...tton on the modem router or you can log in to the modem router and enable or disable the WiFi radios If you are close to the modem router it might be easier to press its WiFi On Off button If you are away from the modem router or you already logged in it might be easier to enable or disable the radios Use the WiFi On Off Button To turn the WiFi radio off and on with the WiFi On Off button Press th...

Page 65: ...tton If you turned off the WiFi radio the WiFi On Off LED and the WPS LED turn off If you turned on the WiFi radio the WiFi On Off LED and the WPS LED light Specify WPS Settings Wi Fi Protected Setup WPS lets you join the WiFi network without typing the WiFi password To specify WPS settings 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type...

Page 66: ...is selected We recommend that you leave this check box selected If you clear this check box the next time a new WiFi client uses WPS to connect to the modem router the modem router WiFi settings change to an automatically generated random SSID and security key 7 Click the Apply button Your settings are saved Set Up a WiFi Access List By default any WiFi computer or device that is configured with t...

Page 67: ...ton 8 In the Network Profiles 2 4 GHz b g n list select the radio button for the SSID WiFi network that you want to use the access list for 9 Select the Turn Access Control On check box and select one of the following radio buttons Allow List Allow computers and devices in the list to connect with WiFi Deny List Deny WiFi access to computers and devices in the list 10 Click the Add button The page...

Page 68: ...requently In this case you can use a commercial Dynamic DNS service This type of service lets you register your domain to their IP address and forwards traffic directed at your domain to your frequently changing IP address If your ISP assigns a private WAN IP address such as 192 168 x x or 10 x x x the Dynamic DNS service does not work because private addresses are not routed on the Internet Your ...

Page 69: ...ost name 10 Type the password or key for your Dynamic DNS account 11 Click the Apply button Your settings are saved Improve Network Connections With Universal Plug N Play Universal Plug N Play UPnP helps devices such as Internet appliances and computers access the network and connect to other devices as needed UPnP devices can automatically discover the services from other registered UPnP devices ...

Page 70: ...rent device status at the expense of more network traffic Longer durations can compromise the freshness of the device status but can significantly reduce network traffic 7 Type the advertisement time to live in hops The time to live for the advertisement is measured in hops steps for each UPnP packet sent Hops are the steps a packet takes between routers The number of hops can range from 1 to 255 ...

Page 71: ...ections View Modem Router Status Reboot the Modem Router Change the Router Mode View and Manage Logs of Modem Router Activity Manage the Modem Router Configuration File Change the admin Password View Event Logs Run the Ping Utility Run the Traceroute Utility View WiFi Access Points in Your Area View or Change the Modem Router WiFi Channel Remote Management Control the LED Settings ...

Page 72: ... The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Click the ADVANCED tab View Cable Information To view modem router cable information 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter th...

Page 73: ...t is 192 168 0 1 DHCP Server Identifies whether the built in DHCP server of the modem router is active for the LAN attached devices For information about using the Reboot button see Reboot the Modem Router on page 75 View Internet Port Information To view modem router Internet port information 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 T...

Page 74: ...ne and the and WiFi Settings 5 GHz pane for the C3700v2 display the following information Name SSID The WiFi network name SSID that the modem router uses Region The geographic region where the modem router is being used It is illegal to use the WiFi features of the modem router in some parts of the world Channel The operating channel of the WiFi port being used Mode The WiFi communication mode set...

Page 75: ...ed computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Click the ADVANCED tab 5 In the Cable Information pane click the Reboot button A confirm...

Page 76: ...ame is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Administration Router Mode 5 Select one of the radio buttons Yes This is the default setting The modem router performs router functions such as Network Address Translation NAT No With this setting the modem router works as a bridge and obtains IP addresses from...

Page 77: ...ormation Description The action that occured Count The number of occurences Last Occurrence The date and time the log entry was recorded Target The name or IP address of the website or news group visited or to which access was attempted Source The source IP address of the initiating device for this log entry 5 To customize the log clear or select the check boxes at the bottom of the page 6 To save...

Page 78: ...2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Administration Backup Settings 5 Click the Back Up button 6 When prompted specify a location on your network A copy of the current set...

Page 79: ...nd restore the factory default settings You might want to do this if you move the modem router to a different network For more information see Factory Default Settings on page 105 To erase the configuration settings 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the m...

Page 80: ...language and contains uppercase and lowercase letters numbers and symbols It can be up to 30 characters To set the password for the user name admin 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The defaul...

Page 81: ... window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Administration Event Log The Event Log page shows the following information Time The time the event log entry was recorded Priority The severity of this event Description A description of t...

Page 82: ...Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Administration Diagnostics In the Utility menu Ping is selected by default 5 Specify the following parameters for the ping utility Target The IP address of the ping target computer Ping Size The size in by...

Page 83: ... password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Administration Diagnostics The Diagnostics page displays 5 In the Utility menu select Traceroute 6 Specify the following parameters for the traceroute utility Target The IP address or host name of the computer that you are tracing Max Hops The maximum number of hops to allow when tracing the rout...

Page 84: ...8 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Administration Wireless AP On this page you can view and select WiFi access points in use in your area View or Change the Modem Router WiFi Channel To view or change your WiFi ...

Page 85: ...cify which channels can be used Depending on your location some channels might not be available If many WiFi networks at your location use the same channel as your WiFi network you might experience interference You can change the channel to avoid the interference 5 For the C3700v2 to view WiFi channels in use in the 5 GHz WiFi band select the 5 GHz a n radio button 6 To change the WiFi channel cli...

Page 86: ...outerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Advanced Setup Remote Management 5 Select the Turn Remote Management On check box 6 Under Allow Remote Access By specify the external IP addresses ...

Page 87: ...ttings are saved Use Remote Access To use remote access 1 Launch a web browser on a computer that is not on your home network 2 Type your modem router s WAN IP address into your browser s address or location field followed by a colon and the custom port number For example if your external address is 134 177 0 123 and you use port number 8080 enter http 134 177 0 123 8080 in your browser Control th...

Page 88: ...Manage Your Network 88 WiFi Cable Modem Router Model C3000v2 and C3700v2 4 Select ADVANCED Advanced Setup LED Control Settings 5 Select a radio button 6 Click the Apply button Your settings are saved ...

Page 89: ...can use port forwarding and port triggering to set up rules for Internet traffic You need networking knowledge to set up these features This chapter includes the following sections Set Up Port Forwarding to a Local Server Set Up Port Triggering ...

Page 90: ...cific incoming protocols 1 Decide which type of service application or game you want to provide 2 Find the local IP address of the computer on your network that will provide the service The server computer must always use the same IP address To specify this setting use the reserved IP address feature See Manage LAN IP Addresses on page 57 3 Launch a web browser from a WiFi enabled computer or mobi...

Page 91: ...ion uses You can usually find this information by contacting the publisher of the application or user groups or news groups 2 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 3 Type http routerlogin net or http 192 168 0 1 A login window opens 4 Enter the modem router user name and password The user name is admin The default password is password T...

Page 92: ...an attached device listed in the table 13 Click the Apply button The service is now in the list on the Port Forwarding Port Triggering page Edit a Port Forwarding Service To edit a port forwarding entry 1 Launch a web browser from a WiFi enabled computer or mobile device that is connected to the network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router u...

Page 93: ...ample Make a Local Web Server Public If you host a web server on your local network you can use port forwarding to allow web requests from anyone on the Internet to reach your web server To make a local web server public 1 Assign your web server either a fixed IP address or a dynamic IP address using DHCP address reservation In this example your modem router always gives your web server an IP addr...

Page 94: ...led computer or mobile device that sent the web page request Set Up Port Triggering Port triggering is a dynamic extension of port forwarding that is useful in these cases An application uses port forwarding to more than one local computer but not simultaneously An application opens incoming ports that are different from the outgoing port With port triggering the modem router monitors traffic to t...

Page 95: ...network 2 Type http routerlogin net or http 192 168 0 1 A login window opens 3 Enter the modem router user name and password The user name is admin The default password is password The user name and password are case sensitive The BASIC Home page displays 4 Select ADVANCED Advanced Setup Port Forwarding Port Triggering The Port Forwarding Port Triggering page displays 5 Select the Port Triggering ...

Page 96: ...rt information 12 Click the Apply button The service is now in the Portmap Table You must enable port triggering before the modem router uses port triggering for the service that you added For information about port triggering see Specify When to Use Port Triggering on page 96 Specify When to Use Port Triggering To specify when to use port triggering 1 Launch a web browser from a WiFi enabled comp...

Page 97: ...Relay Chat IRC Your computer connects to an IRC server at destination port 6667 The IRC server not only responds to your originating source port but also sends an identify message to your computer on port 113 Using port triggering you can tell the modem router When you initiate a session with destination port 6667 you must also allow incoming traffic on port 113 to reach the originating computer T...

Page 98: ...s its session table to see if a session is active for port number 33333 Finding an active session the modem router restores the original address information replaced by NAT and sends this reply message to your computer 7 When your modem router receives the incoming message to destination port 113 it checks its session table and finds an active session for port 113 associated with your computer The...

Page 99: ... The chapter includes the following sections Use LEDs to Troubleshoot Cannot Log In to the Modem Router Troubleshoot the ISP Connection Troubleshoot a TCP IP Network Using the Ping Utility Tip NETGEAR provides helpful articles documentation and the latest software updates at support netgear com ...

Page 100: ...ctions are secure at the modem router and at the hub or computer Make sure that power is turned on to the connected hub or computer Be sure that you are using the correct cable Internet LED is off and the modem router is connected to the cable television cable Make sure that the coaxial cable connections are secure at the modem router and at the wall jack Make sure that your cable service provider...

Page 101: ...ation The modem router user name admin is lowercase Caps Lock is off The default password is password If the modem router does not save changes that you made do the following When entering settings make sure to click the Apply button before moving to another page or your changes are lost Click the Refresh or Reload button in the web browser The changes might be saved but the web browser might be c...

Page 102: ...rectly you might be experiencing one of the following problems Wrong physical connections Make sure that the LAN LED is lit For more information see Use LEDs to Troubleshoot on page 100 Make sure that the corresponding link LEDs are on for your network interface card and the hub ports if any that are connected to your workstation and modem router Wrong network configuration Verify that the Etherne...

Page 103: ...SP assigned a host name to your computer enter that host name as the account name on the Internet Setup page Make sure that the IP address of your modem router is listed on your computer as the default gateway If DHCP assigns the IP configuration of your computer this information is not visible in the Network Control Panel of your computer Verify that the IP address of the modem router is listed a...

Page 104: ...104 A A Supplemental Information This appendix includes the following sections Factory Default Settings Technical Specifications ...

Page 105: ...o the factory settings shown in the following table Table 5 Factory Settings Feature Default Setting Modem router login User login URL http 192 168 0 1 User name and password case sensitive admin password Local network LAN LAN IP 192 168 0 1 Subnet mask 255 255 255 0 DHCP server Enabled DHCP starting IP address 192 168 0 2 DHCP ending IP address 192 168 0 254 Firewall Inbound communication from th...

Page 106: ...aries by region RF channel Auto Operating mode a n g and b Data rate Best Output power Full Access point Enabled Authentication type Open System Wireless Card Access list All WiFi stations allowed 1 Maximum WiFi signal rate derived from IEEE Standard 802 11 specifications Actual throughput will vary Network conditions and environmental factors including volume of network traffic building materials...

Page 107: ...er North America 120V 60 Hz input C3000v2 All regions output 12 VDC 1 5A output 18W maximum C3700v2 All regions output 12 VDC 2 5A output 30W maximum Physical specifications Dimensions 9 25 x 6 1 x 2 25 in 235 x 155 x 57 mm Weight 0 95 lb 0 44 kg Environmental Operating temperature 32 to 113 F 0 to 45 C Operating humidity 90 maximum relative humidity noncondensing Electromagnetic emissions Meets r...

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