Sunday, October 10, 2010

How to reset the modem and router?


Sometimes we need to reset the modem if we have the following issues like,

  •     If you are unable to connect to internet after trying all other options and if you understand that the issue lies with the router configuration. 
  •   Website redirection which can be caused if unwanted DNS values are present.
  •   If the firmware upgrade for the modem was failed it won’t let you to connect to internet.
  •   If the internet connection configuration is changed and more.
  •  
Troubleshooting steps:

The first thing you can do is unplug the power for the modem and router (router will be there if you have a wireless connection otherwise you only have a modem).  After 1 minute you can reconnect the power back and restart your computer. In most cases this fixes the issue. If you have a cable or DSL connection, you can do the same or you can reset your modem by pressing the reset button which will be at the back of the modem. You need to press the reset button for about 30 seconds and modem will be resetted. In some cases upgrading the firmware will fix the issue. To do this you need to download the latest firm ware and then you can upgrade the firmware for your router by logging in to the router page. 

Note: 

  • Don’t connect the power adapter for router to modem and vice versa after disconnection.
  • You can use a pen or something to reset the modem but don’t press the reset button hardly as reset button will jam.
  • You may not need to reset the router if your email client is able to access internet and if you are unable to access internet through your web browser.
  • It’s better to back up the configuration before upgrading the firmware. Don’t turn off modem while upgrading the firmware as the flash chip in the modem will be damaged.
If the above didn’t fix the issue you need to contact your Internet Service Provider (ISP). They will reset the router after accessing the router page and correct the internet connection configuration.  

If you have a ZTE Modem, below are the steps to reset it, modem model: ZXDSL 831ALL

To reset the router we need to do three steps.

1-      First restart the router in its factory settings.
2-      Configure the internet connection settings based upon the settings provided by your Internet Service Provider.
3-      Restart the router in the configuration that we have applied.

First we need to open the router page. 

To open command prompt and router page:

1-      Turn on the modem. 

2-      Go to Start>All programs>Accessories>command prompt or press windows key and then press R button on your key board without releasing windows key. The “Run” window will open.

3-      Type cmd in the run box. Then press enter. The command prompt window will open.
4-      Type in ipconfig. You will be able to find the IP address given for your router. You can check it IP given for the default gateway and it will be the IP address of the router. It’ll be 192.168.1.1.


5-      Open your internet browser. In the address bar, type in http://192.168.1.1 . It will ask you to provide the user name and password to login to the router page. You can provide the user name and password as admin.  The router page will open. 

To restart the modem in factory settings:

1-      Click on Admin tab which is at the left bottom of the page.
2-      Click on Reboot 
3-      It will ask you to reboot router with listed configuration files. 
4-      You can select the configuration from which you need to reboot. Usually there would be two configurations 
a.       Last
                  b.      Factory




      5-     You will see the configuration as “Last”, you need to click on the drop down arrow and select “Factory”
      6-      Click on Reboot.
      7-      Now the router will be rebooting in its factory settings.
      8-      Wait for some time and you will be able to understand that the router is restarted.


To configure the internet connection settings: 

     1-      Now click on the configuration tab. 
     2-      Click on Internet Connection and if you see the connection that is active. “Usually the last configuration under the PVC name will be the active connection” (There are some protocols that you can use depending upon the type of connection. If the protocol selected is PPP over Ethernet (PPPoE) you will  see the disconnect option under PVC name and in this case this is the active connection) 
     3-      You can delete this configuration. 
     4-      Click on Add. 


     5-      You will be asked to configure ATM PVC. You need to select a port number. You can provide the VPI as 0 and 35 for VCI. 


     6-      Click on next and select bridging which helps to connect to internet after dialing. i.e., you will be connected to internet only if you dial the connection with your user name and password and won’t be connected to internet automatically as soon as the router is up. 


     7-      Then click on next and again next and then click on apply. 


     8-      Now we have to restart the router with the settings that we have configured.

Important: The above configuration is for BSNL.  You need to call your ISP to know the value of VCI (Virtual Channel Identifier) provided by them as it may change according to your location.

To restart the router in the configuration that we have applied: 

     1-      Click on the Admin tab again, select Reboot and then select the configuration from the drop down as “Last” if it’s not so. Then click on reboot. 
     2-      Now the modem is resetted. 
     3-      Try to connect to internet, for testing purposes you can use the user name as bbtest and the password is bsnlmp (for BSNL users)

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