Wireless is slow and intermittent.

I've noticed that lately my wireless internet on my laptop is slow and goes out intermittently. Everything else using my wireless network seems to work just fine though. (Phone and tablet) When I plug a network cable in and use a wired connection I don't seem to have any problems. Signal strength and quality are max as far as I can tell.



Just wondering what may be causing this. Hardware fault? Interference?



Does anyone have any recommendations to narrow this problem down?



Thanks.