FE31M / XP: WLAN keeps losing all signals

[souldeluxe]

Hello,

I own a FE31M with Windows XP Media Center. I reinstalled Windows and all, but nothing seems to help.
My WLAN keeps losing the WiFi signal it's connected to. When I check the available WiFi networks, all are gone. This started before I reinstalled Windows and kept getting worse and worse, untill the point my WiFi wouldn't work at all. So I reinstalled Windows and now it's starting to happen again.

What can I do?

Thanks!

[souldeluxe]

BTW: the signal signal will come back eventually. In the beginning after a few seconds, but later it takes longer and longer.