Try to re-set power management or use static IP instead of DHCP. This search result may help,
Vista: Wireless connectivity issuePost Posted: Wed Mar 14, 2007 4:26 am Post subject: Vista: Wireless connectivity issue ... The wireless connection may drop when you use battery power. ...
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Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
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"Linda Custer" <LindaCuster@discussions.microsoft.com> wrote in message news:44C3851E-EDF8-4F02-8A50-75F894B2D9E9@microsoft.com...
I'm having a problem connecting to networks without re-booting.
Simply: I work at home on a wireless network, put my computer to sleep,
drive to work, and plug in to the work Ethernet cable. I wake my computer,
and it finds the work network. However, I have no connectivity. Doing a
"route print" shows 169.* (autoconfigure, worthless) routing. I unplug the
Ethernet cable (and maybe even disable and re-enable the Ethernet adapter)
and "route print" is back to very simple (4-entry) routing that looks right
(just local loopback adapter). I re-connect, and I'm back to the same crazy
routing with no real connectivity.
It doesn't matter if I completely disable and turn off my wireless
connectivity -- the problem still exists. It's not due to an attempt to
connect to some local wireless network.
Re-booting the computer completely fixes the problem.
My IT person swears that all is fine on our network and our DHCP server. He
says it's a glitch in Vista networking. Can anyone reproduce this problem?
Can anyone point me to any knowledgebase articles about this? Are there any
workarounds?
I'd prefer not to have to re-boot every time I switch to my work network.
Thanks!