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Table 1. LED descriptions

Description

Icon

LED

•

Solid green. Power is supplied to the cable modem.

•

Off. No power is supplied to the cable modem.

•

Solid red. The cable modem is too warm and might overheat. For more
information about this condition, see 

Use LEDs to Troubleshoot

 on

page 23.

Power

•

Solid amber. One downstream channel is locked.

•

Solid green. Two or more downstream channels are locked.

•

Blinking green. The cable modem is scanning for a downstream
channel.

•

Off. No downstream channel is locked.

Downstream

•

Solid amber. One upstream channel is locked.

•

Solid green. Two or more upstream channels are locked.

•

Blinking green. The cable modem is scanning for an upstream channel.

•

Off. No upstream channel is locked.

Upstream

•

Solid green. The cable modem is online.

•

Blinking green. The cable modem is synchronizing with the cable
provider’s cable modem termination system (CMTS).

•

Off. The cable modem is offline.

Internet

Hardware Setup

7

Nighthawk Multi-Gig Speed Cable Modem

Summary of Contents for CM1100

Page 1: ...Nighthawk Multi Gig Speed Cable Modem User Manual Model CM1100 August 2018 202 11884 01 350 E Plumeria Drive San Jose CA 95134 USA ...

Page 2: ... support resources Contact your Internet service provider for technical support Trademarks NETGEAR Inc NETGEAR and the NETGEAR Logo are trademarks of NETGEAR Inc Any non NETGEAR trademarks are used for reference purposes only Compliance and Conformity For regulatory compliance information visit https www netgear com about regulatory See the regulatory compliance document before connecting the powe...

Page 3: ... 16 View Cable Modem Status 16 View and Clear Event Logs 17 Specify the Cable Connection Starting Frequency 17 Ethernet Port Aggregation 18 Set Up Ethernet Port Aggregation 18 View the Ethernet Port Aggregation Status 18 Change the Ethernet Port Aggregation Configuration Mode 19 Reboot the Cable Modem 19 Reset the Cable Modem to Factory Default Settings 20 Use the Reset Button on the Back Panel 21...

Page 4: ...s Install and Activate Your Cable Modem For more information about the topics covered in this manual visit the support website at support netgear com An uninterruptible power supply UPS can be purchased separately for continued service during power outages For a list of supported UPS models visit netgear com support product CM1100 Note 4 ...

Page 5: ...our Cable Modem Your package contains the following items Figure 1 Package contents 1 High Speed Cable Modem Model CM1100 2 Ethernet cable 3 Power adapter Hardware Setup 5 Nighthawk Multi Gig Speed Cable Modem ...

Page 6: ...dem provides status LEDs on the front Figure 2 Front panel You can use the LEDs to verify status and connections The following table lists and describes each LED on the cable modem Hardware Setup 6 Nighthawk Multi Gig Speed Cable Modem ...

Page 7: ...are locked Blinking green The cable modem is scanning for a downstream channel Off No downstream channel is locked Downstream Solid amber One upstream channel is locked Solid green Two or more upstream channels are locked Blinking green The cable modem is scanning for an upstream channel Off No upstream channel is locked Upstream Solid green The cable modem is online Blinking green The cable modem...

Page 8: ... green or amber The LAN port is processing traffic LAN 1 Green A powered on device is connected to the LAN port at 1000 Mbps Amber A powered on device is connected to the LAN port at 10 Mbps or 100 Mbps Off No device is connected to the LAN port Blinking green or amber The LAN port is processing traffic LAN 2 Rear Panel The connections and button on the rear panel are shown in the following figure...

Page 9: ... You can use the LAN 2 port to set up Ethernet port aggregation For more information see Ethernet Port Aggregation on page 18 Coaxial cable port Connect the cable port to a cable wall outlet Power On Off button Press the Power On Off button to provide power to the cable modem DC power connector Connect the power adapter that came in the product package to the DC power connector Label The cable mod...

Page 10: ...install the cable modem and activate your Internet service you can disconnect the computer and connect a router to the cable modem Figure 5 Connect your cable modem to a computer To connect your cable modem directly to a computer 1 Turn off and disconnect existing modems and routers If you are replacing a modem that is currently connected in your home unplug the modem and plug the new cable modem ...

Page 11: ...ctivate your Internet service see Activate Your Internet Service on page 11 After you install and activate the cable modem you can disconnect the computer and connect a router to the cable modem For more information see Connect Your Cable Modem to a Router After Installation and Activation on page 12 Note Activate Your Internet Service Before you activate your Internet service gather the following...

Page 12: ...reen instructions to activate your Internet service 2 If you are unable to activate your Internet service using the instructions on your cable Internet provider s website call your cable Internet provider for support 3 To determine the accurate Internet speed visit your cable Internet provider s speed test website and perform a speed test If your actual speed is lower than your subscribed speed co...

Page 13: ...t for the Internet LED to stop blinking and light solid green 2 Use an Ethernet cable to connect the Ethernet port on the cable modem to the WAN or Internet port on the router 3 Power on the router 4 Wait until the router is ready 5 Connect a computer to the router For more information about how to set up your router see the documentation that came with your router Hardware Setup 13 Nighthawk Mult...

Page 14: ...imited number of settings and monitor the cable modem This chapter includes the following sections Log In to the Cable Modem Change the admin Password View Cable Modem Initialization View Cable Modem Status View and Clear Event Logs Specify the Cable Connection Starting Frequency Ethernet Port Aggregation Reboot the Cable Modem Reset the Cable Modem to Factory Default Settings 14 ...

Page 15: ...lt password that is used to log in to the cable modem with the admin user name Be sure to change the password for the user name admin to a secure password The ideal password contains no dictionary words from any language and contains uppercase and lowercase letters numbers and symbols It can be up to 30 characters Note To set the password for the user name admin 1 Launch a web browser from a compu...

Page 16: ...ault password is password The user name and password are case sensitive The BASIC Home page displays 4 Select Cable Connection The Cable Connection page displays The Startup Procedure section displays the initialization progress The page also displays the status of all downstream and upstream channels You must scroll down to view all the channels The number of downstream and upstream channels that...

Page 17: ...tion of this event 5 To refresh the page click the Refresh button 6 To clear the log entries click the Clear Log button Specify the Cable Connection Starting Frequency The starting frequency is automatically generated For most Internet connections you do not need to specify this information If you must enter a starting frequency contact your Internet provider To change the starting frequency 1 Lau...

Page 18: ...id causing broadcast looping which can shut down your network do not connect an unmanaged switch to the LAN 1 and 2 port on your cable modem Set Up Ethernet Port Aggregation To set up Ethernet port aggregation 1 Configure your router or computer before connecting it to the cable modem For information about how to set up Ethernet port aggregation on your router or computer see the documentation tha...

Page 19: ... mode disables the Ethernet port aggregation function on the cable modem Do not use the LAN 2 port if you select this mode Enable LACP IEEE 803 3ad The cable modem communicates with the router or computer that is connected to the LAN 2 port on your cable modem and checks to see if Ethernet port aggregation is supported on the router or computer If Ethernet port aggregation is supported the cable m...

Page 20: ...gs you can use either the Reset button on the back panel of the cable modem or the Factory reset software button However if you changed the default password that you use to access the cable modem and lost the password you must use the Reset button on the back panel After you reset the cable modem to factory default settings the password is password The LAN IP address is always 192 168 100 1 You ca...

Page 21: ... software button 1 Launch a web browser from a computer that is connected to your cable modem 2 Enter http 192 168 100 1 A login window opens 3 Enter the admin 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 The ADVANCED Home page displays 5 Click the Factory reset but...

Page 22: ...This chapter provides information about troubleshooting your cable modem The chapter includes the following sections Use LEDs to Troubleshoot Cannot Log In to the Cable Modem Troubleshoot the Cable Internet Connection 22 ...

Page 23: ...occurred Contact technical support All LEDs are off when the cable modem is plugged in Reset the configuration of the cable modem to its factory defaults If the error persists a hardware problem occurred Contact technical support All LEDs stay on Make sure that the Ethernet cable connections are secure at the cable modem and at the computer router or WiFi router Make sure that power is turned on t...

Page 24: ...location with good ventilation 5 Reconnect the power adapter The Power LED lights red Cannot Log In to the Cable Modem If you cannot access your cable modem from a computer that is connected to your cable modem or to a router that is connected your cable modem check the following If your computer is connected to your cable modem with an Ethernet cable check the connection Make sure that Java JavaS...

Page 25: ...ssible that the changes occurred but the web browser is caching the old configuration Troubleshoot the Cable Internet Connection If your cable modem cannot access the Internet but the Internet LED lights green make sure that the cable MAC address or device MAC address of your cable modem is registered with Internet service provider Troubleshooting 25 Nighthawk Multi Gig Speed Cable Modem ...

Page 26: ...4 Supplemental Information This appendix covers the following topics Factory Settings Technical Specifications 26 ...

Page 27: ...nical Specifications The following table lists the technical specifications for the cable modem Table 5 Technical specifications Specification Feature Input 110 120V 47 60 Hz Output 12 VDC 2 5 A Power adapter Dimensions 8 8 x 3 4 x 5 9 in 224 x 86 x 150 mm Weight 1 00 lb 460 g Physical specifications Operating temperature 32 to 104 F 0 to 40 C Operating humidity 90 maximum relative humidity noncon...

Page 28: ... Technical specifications Continued 2 OFDM and 32 SC QAM bonded downstream 2 OFDMA and 8 SC QAM bonded upstream Channels FCC UL Certifications Supplemental Information 28 Nighthawk Multi Gig Speed Cable Modem ...

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