Does your ethernet become disabled when you remove your laptop from power (Win XP),

windows does this to save power .

First put back power> got to that devices property >configure>Power Management> Deselect “Allow Computer to turn off this device to save power”

Then go to run>type cmd>powercfg /DEVICEQUERY ALL_DEVICES

(Actually wake_programmable is all u need)

see the name of the device

then

powercfg /DEVICEENABLEWAKE <name>

Thats ALL !!!!

(PS if you are using vista open cmd in administrator mode /UAC mode)