Can´t enable Wireless

[Meegener]

Hi.

The WLAN on my VGN-A115B doesn´t work anymore. For a while it works perfectly and I had no problems. But now I can´t activate the WLAN. The Hardware Switch in front of the Notebook is switch on and the LED is green. But I can´t see the wireless adapter in the network connections. I only can see the normal network adapter and the 1394.
I tried to reinstall the drivers, but it doesn´t work.
Could it be a hardware defect or just a software problem?

Thanks!

[robpaxton]

It could be either a software or hardware problem. Try using Windows System Restore to go back to a date when the WLAN adapter was working. (Start - All programs - Accessories - System Tools - System Restore)

[Meegener]

I restored the system to the date when the WLAN was working, but the problem is the same. I can´t see the wireless adapter in the network area.