Hn200W and the 11Mbps wireless card

[Chris_401]

First of all, hi to all. Kinda new here, so be patient with me. My dad just recently asked me to set up the gateway above mentioned so that we could get wireless at home. We currently subscribe to SBCYahoo DSL. I have a problem with the wireless connection dropping out/ disappearing out of the blue. It's really infuriating and i find that whenever it happens and i try to reinstall everything (DSL and Gateway) the problem is solved. Does anyone have suggestions on what to do? I've just about run out of ideas. Think our 2-Ghz phone has something to do with it?