Windows 7 Bsnl Connection,LAN has no ip configured ,Error 651

I get error 651
When i try to diagnose the fault it says LAN adapter has no ip configured.

Kindly help.

Enter in Lan Network page obtain Ip address automatically.

2
Better try PPPoE ('Always On") mode ( enter UserId/PW in wan page)
of modem, and get connected to Internet.
Feedback confirm connected. mention modem/model/make/number .

Thanks essbebe.
I am at the office now and will confirm the modem make,Number when i get back.
Meanwhile i will also try to shift to pppoe mode and let you know