WiFi Disconnects Randomly

I have a BB9300 and I am trying to download apps from BB App World. My wifi disconnects halfway when it is almost done downloading. I'm connecting from my home wireless router (DIR-655) it supports b/g/n and I'm using WPA. Is this a problem with my router configuration?

I had to chuck the dir-655 and get a good router. switched it out with a trendnet router and have never looked back.

Is there another solution to fix this?

switch off 'auto' on the router and change channels until you find the one that works.