Ok.Now here is what i did...Unplugged Router ..just connected modemModem set to bridge mode. Lan settings Obtain IP automatically and DNS alsoDHCP disabledRouter connected to modem and desktopConfigured router to PPPoE Mode i got an option of MTU what should be the value ...by default it was 1454Restarted my machine.No internet connection Now rolling back processRemoved the routerConnected modem directly to machineWhile trying to access 192.168.1.1 (Modem IP) failed ... i guess the DHCP disabling thing did thisSo i tried to Manually enter IP address and DNS IPi tried to access Modem page (192.168.1.1) ..Again it failedSo i tried to do all the steps as given in link ( like setting up manual connection thru network connections... etc etc)Still no success to 192.168.1.1Reset my modem to factory settings and was able to ping 192.168.1.1...configured back to PPPoe mode and got connected to internet and posting it right now!!!I guess the above dint work for me ....Thanks for your help guys ... but the problem still persists Ne suggestion ...!!!