Hi - may be the wrong place but I'll try anyway.
Unboxed Windows8 desktop and updated all software et al; sitting next to a laptop (good wifi connection) and router is about 5 yards away.
Connection strength is about 50% (3 bars); suddenly drops to 2,1 then off; comes on again automatically or manually.
I have run PCdoctor - no issue. Atheros drive was 10.0.0.67. I am currently trying 10.0.0.75. Had one failure with the latter.
Diagnostics which may help are:- (see next post).
I want to open the box up and have a look at the card. Is there anything I should be looking for? Thanks.