Learnings from setting up a Linksys wireless router with BSNL Modem on Airtel connection

Make sure the wired one works all right. Connect the modem directly to laptop/PC and ensure that it works. At this mode, go to command prompt (Windows + R) and type "ipconfig". Note down the IP Address of the LAN. Usually this will be 192.168.1.1

If there are issue getting Internet at this stage, call Airtel and get this right.

now disconnect the modem and connect the router. go to command prompt (Windows + R) and type "ipconfig". Note down the IP Address of the LAN. Usually this will be 192.168.1.1. If the IP addresses of both are same, then you need to change it.

if you have the CD, run the wizard. Select DHCP. If the IP Address is same as modem, change the IP Address. (Say 192.168.2.1)

If you done have the CD, goto Internet explorer and enter the router IP address. (Eg: http://192.168.1.1/) enter the username / password of modem (default is admin / admin). here goto Setup and see the IP. if its same, change it as mentioned above. now goto wireless tab and select DHCP

On the security side, select "WPA Personal" and put password. Save the password somewhere safe.

now disconnect the router, connect the modem to router, connect back the router to laptop.

If are working fine, you should be getting Internet.

now disconnect the router from laptop. enable wifi and search for new wifi.. select yours and enter the password you saved. check if you are getting the password.