Linksys wet54gs5 my device does work but, some days ago it was raining and my device was in the window so some water came on it too. can that be the problem that it is not connecting to the far away network.

Is your car battery working fine? Are you able to start the car? Check for any blown fuse. Power windows may also stop working temporarily if the car is submerged in water. Was you car submerged in water? Let the system dry, it should start working normally if fuse is not blown.

It is possible that antenna was (is) built into glass. If so check if it is connected

Sounds like a heater core to me, does it smell a little like antifreeze?

The first thing I would recommend is to try plugging the adapter into another laptop to see whether it, or your laptop, is the problem.
If it's OK on the other laptop, I would suggest un-installing the driver for the adapter, upgrade Windows XP to latest, downloading the latest driver from the Linksys website then re-installing the driver according to manufacturer's instructions.

please check ur wifi device ip is not conflict & check the channel

Do you have a manual it will help you out if it came with one if it didn't take it back and say I don't have the manual for my linksys!!

replace the fuse,,, try operating the passenger window from the switch on the passenger door.. see if the fuse fails again...the rain wouldn't normally be a problem, these are designed to operate in wet conditions unless the thing was literally water logged.

does your car have a sun roof . some times the rubber seals wear out and the rain will get throu and run down the channals to the floor , check all rubberseals , and roof linning for signs of wetness

Thermal transfer-the unit is creating condensation.

I experienced a similar problem with a Vista laptop a few weeks ago. There were no apparent problems, so I uninstalled the wireless network adapter from the Windows "device manager" and then let it automatically reinstall the wireless adapter when it rebooted. The local wireless network appeared about 5 minutes after the reboot and has been working ever since.

If that doesn't help, try removing the Linksys software from your computer and try the network adapter remove/reinstall again.