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Confidential and Proprietary Information of ZTE CORPORATION 32 

 

 

C h a p t e r 

  4 

 

Troubleshooting 

 

Voice Related Problems 

Symptoms 

Possible Problems/ Solutions 

No Dial Tone. 

Please wait for 1~2 minutes after the router is turned on. 

If 3G LED light is blinking, you have no good RF 
reception. Change the location of the router. 

There is a prompt/ phone alert/ announcement as soon as I 
lift the phone off the hook. 

Make sure your (U)SIM card is inserted correctly and the 
PIN number has been entered. If the PIN number has been 
entered incorrectly then you will need to enter the PUK 
code when prompted. 

The line is noisy/ distorted when I lift the phone off the 
hook. 

Remove any electrical appliance which is too close to the 
phone or router. 

The cable or phone set might be faulty. 

I hear a rapid engaged tone as soon as I lift the phone off 
the hook. 

Put the phone on hook and try again. If you are connected 
to the internet using the 2G (GSM) network, please 
disconnect this first. 

After dialing the last digit I hear nothing /silence. 

When you have finished dialing you can press the # key or 
wait 4-8 seconds to connect the call.   

I can’t make or receive a call when I am surfing on the net. 

If you are connected using the 2G (GSM) network then 
you cannot surf the net and make a phone call 
simultaneously. Please disconnect the internet and wait 30 
seconds to 1 minute before making a call. 

 

 

Internet Related Problems 

Symptoms   

Possible Problems/ Solutions 

I cannot access the internet at all. 

Please check your configuration settings. 

Please wait 1~ 2 minutes for the router to initialize.   
Check your service indicator LED’s. 

The download or upload speeds are very slow. 

The speed is dependent on signal strength. Check your 
signal strength and network type. 

 

 

Others 

Symptoms   

Possible Problems/ Solutions 

The RSSI signal indicator is always blinking or does not 
light. 

This indicates poor reception. Try moving the router to 
another location near the window. 

 

 
 

Summary of Contents for MF25

Page 1: ...MF25 User Manual ZTE CORPORATION NO 55 Hi tech Road South ShenZhen P R China Postcode 518057 Tel 86 755 26779999 http www zte com cn E mail mobile zte com cn ...

Page 2: ... any form or by any means electronic or mechanical including photocopying and microfilm without the prior written permission of ZTE Corporation The manual is published by ZTE Corporation We reserve the right to make modifications on print errors or update specifications without prior notice Version No R1 0 Edition Time Feb 2012 Manual No 079584503XXX ...

Page 3: ...g on Your Device 7 Power Supply 8 Voice 9 Making a Call 9 Answering a Call 9 Internet Access 10 Preparation 10 Establishing a connection between your device and the client 10 Accessing the Internet 11 Accessing the Internet by Bridge Mode 11 Accessing the Internet by Cable Broadband 11 Accessing the Internet by 3G Gateway 12 Accessing the WebGUI Configuration Page 12 Login 13 Operation Mode 14 WAN...

Page 4: ...Usage of WPS 31 Logout 31 Troubleshooting 32 Technical Parameters 33 Technical Parameters 33 Glossary 34 ...

Page 5: ...y ZTE Unauthorized accessories may affect the router performance damage the router or cause danger to you Do not attempt to dismantle the router There are no user serviceable parts Do not allow the router or accessories to come into contact with liquid or moisture at any time Do not immerse the router in any liquid Do not place objects on top of the router This may lead to overheating of the devic...

Page 6: ... of Ny Alesund Russian Federation Only for indoor applications Note Please don t use the product outdoors in France FCC Regulations This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation T...

Page 7: ...smitter must not be co located or operating in conjunction with any other antenna or transmitter FCC ID Q78 ZTEMF25 Limited Warranty This warranty does not apply to defects or errors in the Product caused by i Reasonable Router Appearance Disfiguration ii End User s failure to follow ZTE s installation operation or maintenance instructions or procedures iii End User s mishandling misuse negligence...

Page 8: ...es including but not limited to lost profits interruption of business cost of capital cost of substitute facilities or product or any downtime cost Emergency Call Do not rely on the Router to provide emergency call in all situations Your Router only supports emergency dialing when there is power and connection to the mobile network If the power fails the router can not work If you have no network ...

Page 9: ...iption POWER ON External power supply works normally OFF External power supply is disconnected or power off WLAN ON WLAN works normally with no data transmission Blinking WLAN works normally with data transmission OFF WLAN works abnormally or this WLAN function is disabled PHONE Off Not in use Blinking On Dialing or there is an incoming call the phone is ringing On In calling PPP ON WAN connection...

Page 10: ...onding LAN port is connected Blinking The corresponding LAN port is connected with data transmission Off No network cable connected Interface Description 1 Phone Standard RJ11 connector for Telephone 2 LAN Ethernet connections to computer 3 Reset To restore factory default configurations after pressing for 5 seconds 4 POWER Connection to the external power supply 5 On Off Turn the router On or Off...

Page 11: ... sure that You are in an area which has network coverage You are using the correct U SIM card Connecting to Phone Connect the telephone to the PHONE interface with a phone cable RJ11 Connecting to Computer Connect your computer to the LAN interface with an Ethernet cable RJ45 Notes The router will adapt the Ethernet cable style crossover or straight automatically Connecting with External Power Con...

Page 12: ... When the router is turned off an incoming caller will hear the prompt like The number you have dialed is currently unavailable If the 2G 3G LED is blinking constantly try to move the router to another location The router takes 1 2 minutes to initialize attach to the network and obtain an IP address Power Supply For normal operation connect the router to the external power adapter In case of power...

Page 13: ...ication the RF signal is unavailable Change the location of the router and make sure nothing is blocking it Making a Trunk Call If you are making a trunk call add the area code as normal E g 03 9612 3456 Making an International Call If you are making an international call key in the international access code followed by the country code area code and number E g 00 11 64 12 345678 Answering a Call ...

Page 14: ...een your device and the client Via RJ45 Ethernet cable 1 Connect your device and the client with the RJ45 Ethernet cable 2 Power on your device The connection between your device and the client will be established successfully a moment later Via Wi Fi 1 Power on your device directly It will take 1 2 minutes to initialize and then Wi Fi LED is blinking 2 Use your normal Wi Fi application on the cli...

Page 15: ...onnection between your device and the client will be established successfully Accessing the Internet Before accessing the internet make sure 1 Switch on the device 2 Establish a connection between your device and the client Accessing the Internet by Bridge Mode 1 Login the WebGUI and set the Operation Mode as Bridge Mode 2 Connect the device with LAN Accessing the Internet by Cable Broadband 1 Log...

Page 16: ... Login the WebGUI and set the Operation Mode as 3G Gateway 2 Set WAN Connection in WebGUI Accessing the WebGUI Configuration Page 1 Make sure the connection between your device and the client is correct 2 Launch the internet browser and enter http 192 168 0 1 in the address bar Notes It is recommended that you use IE 6 0 or later Firefox 2 0 or later Opera 10 0 or later Safari 4 0 or later or Chro...

Page 17: ...red language and input the password the default Password is admin Click Login to log in the device Notes If you check Save after type in password the device will save it Next time when you want to login the device with the same password what you need to do is click Login When you login the following interface appears ...

Page 18: ... operation in the related areas Index area Show the configuration list for your device Content area Show the detailed configuration System Information Area Show the system status and different kinds of tips Operation Mode When you fist login the webGUI you need to choose the operation mode to make the correct setting There are three operation mode ...

Page 19: ... connect to the Internet Select PPPoE input the User Name and Password supplied by the network provider and select the Connect mode Auto Connect The router will automatically connect to WAN when it is powered on On Demand Connect The connection will be established when data transmission is required Router will disconnect from the Internet if there is no data traffic going through during the Max Id...

Page 20: ...e Internet if there is no data traffic going through during the Max Idle Time Manual Connect Connect to Internet or disconnect from Internet manually Click Apply to confirm your configuration and then the figure will show in the wan connection status SMS This function allows you to send or receive short messages And you can use this function only in 3G Gateway mode Sending new SMS 1 Select SMS New...

Page 21: ...ages saved in your device will be displayed here Click View to view the selected message Click Reply to reply to the selected message sender Click Forward to forward message to other person Click Delete to delete the selected message Click Delete All to delete all the messages Outbox Select SMS Outbox to access the following figure All the sent messages in your device will be displayed here Drafts...

Page 22: ...modify any settings unless instructed by your service provider Please disconnect the device from the network before change the settings 3G Settings Wireless Info Select Settings 3G Settings Wireless Info the 3G wireless information is shown in the following figure Click Refresh to update the wireless information Network Select Select Settings 3G Settings Network Select the Band Selection Mode is s...

Page 23: ... will automatically obtain this parameter DNS If a fixed IP address is given by your service provider then choose Manual DNS Otherwise choose Auto DNS and device will automatically obtain parameters Authentication Password Authentication Protocol PAP provides a simple method without encryption for the peer to establish its identity using a 2 way handshake Challenge Handshake Authentication Protoco...

Page 24: ...evices connect with this router in the same transmission mode performance will be improved by choosing the appropriate wireless mode Network Name SSID Service Set Identifier SSID Enter a string less than 32 characters as the name for your wireless local area network WLAN Broadcast Network Name SSID Disable or Enable Default this function If Enable is selected the router broadcasts the SSID and oth...

Page 25: ...802 11b OFDM 802 11g HTMIX 802 11b g n Mixed Mode GREENFIELD 802 11b g Mixed Mode 4 Select Encrypt Type WEP TKIP AES If you select NONE all the data transmitted without encryption and other station can access router 5 Set peer AP s wireless MAC address on router Only Repeater Mode and Bridge Mode need this The HT physical Mode parameters are shown below Operating Mode In Mixed Mode packets are tra...

Page 26: ...rmance RTS Threshold Request To Send RTS threshold should be remained as the value of 2347 If you encounter inconsistent data flow only minor modifications are recommended TX Power Transmit power should be remained as the value of 100 Short Preamble The length of CRC block in the frames during the wireless communication Shot Slot To indicate that 802 11g is using a shot time slot because there is ...

Page 27: ... the WPA PSK and WPA2 PSK scheme If the Authentication type is Open Shared WEPAUTO the bottom part of the configuration page displays parameters as shown WEP Keys At most four keys can be set in the blank Choose the primary key index The primary key is the only key in use at a given time Whatever keys you enter for an access point you must also enter the same keys for the client adapter in the sam...

Page 28: ...ode one is set PIN code on the client s wireless adapter you can find the PIN code in AP PIN field of WPS Summary the other way is set the client s PIN code in Client PIN field PBC Press the WPS button of the router or select PBC and then click Apply Press WPS button on the client wireless adapter within two minutes and the negotiation process will be established Firewall You may setup firewall ru...

Page 29: ...red Dest IP Address Set the destination IP address that will be filtered Source IP Address Set the source IP address that will be filtered Protocol Set which protocol will be used for filtering Dest Port Range Set the destination port numbers that will be filtered Source Port Range Set the source port numbers that will be filtered Action Set how to handle the packet if it matches with the rule Com...

Page 30: ... the Mac IP Port Filtering area 4 Click Apply in the Mac IP Port Filtering area URL Filtering You can setup content filter to restrict the improper content access Select Firewall URL Filtering the URL Filtering is shown in the following figure Type URL address and then click Add to add the URL address into the filtering list The new URL filtering item will be shown in the Current Webs URL Filters ...

Page 31: ... to confirm your configuration DMZ You can setup a De militarized Zone DMZ to separate internal network with the Internet Select Firewall DMZ the DMZ setting is shown in the following figure If you select Enable set the DMZ IP Address and then click Apply to confirm your configuration System Security You can configure system firewall to protect AP or router from being attacking Select Firewall Sys...

Page 32: ...ect Settings Advanced Status the system information is shown in the following figure Management Select Settings Advanced Management the administrator settings information is shown in the following figure You can change the administrator s password Click Apply to confirm your configuration Restore Select Settings Advanced Restore click Restore to set all the settings to their factory default values...

Page 33: ...e Note Pin Manage can be used in 3G Gateway mode Select Settings Advanced PIN Manage the PIN manage is shown in the following figure If you select Modify the modification parameters are shown in the following figure Type the old PIN code and then type two times the new PIN code Click Apply to confirm your configuration ...

Page 34: ...AN interface Subnet Mask Subnet mask for the IP address MAC Address MAC address for the LAN interface DHCP Server Enable or disable DHCP Server function DHCP IP Pool Allocate begin and end IP address for IP pool DHCP Lease Time Define how long the leased IP address will be expired and will relocate new IP address Click Apply to confirm your configuration Upgrade Firmware Select Settings Advanced U...

Page 35: ...ally after WPS has been available Please do the following 1 Start up your device 2 Launch the client device connected to your device 3 Enable the WPS function of your device 4 Enable the WPS function of the client Notes For the detailed operations about the client please refer to the client s instruction Logout Select Logout a pop up window will appear as the following figure shown Click OK to log...

Page 36: ...nd try again If you are connected to the internet using the 2G GSM network please disconnect this first After dialing the last digit I hear nothing silence When you have finished dialing you can press the key or wait 4 8 seconds to connect the call I can t make or receive a call when I am surfing on the net If you are connected using the 2G GSM network then you cannot surf the net and make a phone...

Page 37: ...arameters Technical Parameters Network Frequency Band EDGE GPRS GSM 850 900 1800 1900MHz HSPA HSUPA HSDPA UMTS 850 900 1900 2100MHz Power Adapter Input 100V 240V AC 50 60Hz Output 12V DC 1 5A Data Service HSUPA 5 76Mbps UL HSDPA 28Mbps DL Dimensions W H D 202mm 160mm 30 5mm Weight About 550g ...

Page 38: ...ral Packet Radio Service HSDPA High Speed Downlink Packet Access HSUPA High Speed Uplink Packet Access IP Internet Protocol LAN Local Area Network LED Light emitting Diode MHz Megahertz MTU Maximum Transmission Unit PDP Packet Data Protocol PIN Personal Identification Number PPP Point to Point Protocol PSTN Public Switched Telephony Network PUK PIN Unlocking Key RSSI Radio Signal Strength Indicato...

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