Connection lost after hibernation/sleep

[preedy]

I have a problem with Windows Vista on T61. When my computer wake up from hibenation/sleep it lose connection to the Internet. I have to reconnect (Wi-Fi) or restart system (Eth). It is really annoying.

I am sorry if this problem was mentioned here before, but I couldn't find anything.

[ryengineer]

Any firewall? Are you using Access Connections?

Try this (works on intel NIC):

My Computer > Right Click Properties > Device Manager > Network Adapters > Right click Properties on the network > Power Management > uncheck "allow the computer to turn off this device to save power"

Better explanation in this PDF file.

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