upgraded to vista and cannot get on the internet

[astagg]

I hope someone can help me........

I just upgraded my hp8230 to Vista ultimate x32 and I can longer get onto the internet..

The network connection status shows that IPv4 and IPv6 have limited connectivity but I have excellent signal..

I used to be running xp Professional with no problems and no changes have been made.

I have a wireless netgear DG834gv2 ......

I have tried disabling IPv4 and 6 separately but no luck...

can anyone help......

Adrian