Wifi drops, must be reset?

Hi,

I have a problem with Wifi on my Air 3G C5J6.
Sometimes my wifi drops, and I have to right-click on Wifi and Diagnose. Then it will perform a reset for the Wifi and it connects and works again.

This happens more when I have bluetooth connected to my bluetooth-speaker. But it also happens even if it is only Wifi connected.

Does anybody else have these problems?

Thank you!