If you assign static IP, does that work? Or this link may help,
Vista Wireless IssuesPost Posted: Wed Mar 14, 2007 4:26 am Post subject: Vista: Wireless connectivity issue ... The wireless connection may drop when you use battery power. ...
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Bob" <firstname.lastname@example.org> wrote in message news:63460A2E-C2DB-47F7-A4C9-AC99FF9964D0@microsoft.com...
Got new notebook with Vista Basic and connected to home wireless network
(non-secure) with no problem. Used connection to upgrade to Vista Home
Premium. Now the notebook recognizes the network but will not connect.
Tried the solution at http://support.microsoft.com/kb/928233/en-us