Go to
http://gateway.2wire.net
Or
just open ur internet browser
then it should tell u some error, ask u to reboot
click rebboots system.
Byright this happens when u restart modem, and ur modem will
automatically help u 'log in', but in this case it does not. The
DSL light keeps flashing because it is trying to connect you to ur
ISP first. It might be that the modem is faulty, i have encounted
this a lot of times, tell them about ur problem
if rebooting the system doesnt help, call singnet, tell them wad
is ahppening, they noe wad to do