I finally sat down and dug into the issue, and it seems from the router logs that the phone is deauthenticating when it sleeps the wifi and that causes my computers wifi to deauth as well.wtf? It didn't really bother me until I was downloading some large work files and I kept getting disconnected and screwing up the downloads. I've noticed for the last few months occasionally my wireless at home would disconnect and reconnect after a few seconds.
LG Ally :: Wifi Disconnects Pc Sep 28, 2010