1) COnnect ur wireless router to ur PC/laptop LAN port. do not connect mtnl adsl modem2) Enter into setings page of ur router by 192.168.1.1 change the wireless router's ip to 192.168.2.1. default gatewy as 192.168.1.1. Sun Net 255.255.255.0. APPLY switch off router3) conenct MTNL Adsl modem to wireless router. Switch on MTNL ADSL first. then Wireless router .4) u shud be on net now. do bck up . ur new router setting page shall now be 192.168.2.1.