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Guest
Guest
Archived from groups: microsoft.public.windows.networking.wireless (More info?)
IBM Thinkpad T41 with embedded Cisco card. All the latest drivers, bios,
etc. IP address on wireless is lost when switching from battery to AC or AC
to battery. Scenario: wireless working great, excellent signal. Pull out
power cord. Within about a minute, connections fail, and IP address
169.254.200.115 is assigned to wireless connection. Signal is still strong,
but error message comes up saying "limited or no connectivity...". When I do
a repair, the connection comes right back with a valid address and wireless
works great again. Chatted with Microsoft XP2 support and IBM technical
support. Nobody has ever heard of this before. Well, now you have!
Other details:
Using windows to configure my wireless networking
WEP Open authentication
Connect when this network is in range "enabled".
Symptoms the same if firewall is on or off.
My thoughts - something in the power event within the OS (or IBM's power
management code) is killing the IP address - perhaps its going through a
"should I suspend" logic and that is where the problem is. When the new
power scheme is settled down (screen brightness lowered, etc), it does not do
a DHCP request to regain its lost IP address.
Looking forward to your comments and suggestions.
IBM Thinkpad T41 with embedded Cisco card. All the latest drivers, bios,
etc. IP address on wireless is lost when switching from battery to AC or AC
to battery. Scenario: wireless working great, excellent signal. Pull out
power cord. Within about a minute, connections fail, and IP address
169.254.200.115 is assigned to wireless connection. Signal is still strong,
but error message comes up saying "limited or no connectivity...". When I do
a repair, the connection comes right back with a valid address and wireless
works great again. Chatted with Microsoft XP2 support and IBM technical
support. Nobody has ever heard of this before. Well, now you have!
Other details:
Using windows to configure my wireless networking
WEP Open authentication
Connect when this network is in range "enabled".
Symptoms the same if firewall is on or off.
My thoughts - something in the power event within the OS (or IBM's power
management code) is killing the IP address - perhaps its going through a
"should I suspend" logic and that is where the problem is. When the new
power scheme is settled down (screen brightness lowered, etc), it does not do
a DHCP request to regain its lost IP address.
Looking forward to your comments and suggestions.