I'm currently running a Trendnet TEW-633GR router with WPA2 Personal only with AES.
I have no trouble connecting to the network and my droid shows that I am connected and have obtained an IP. I can use applications, the browser, etc for a few minutes but then suddenly I can't use any internet requiring functions.
If i restart the droid. The wifi works again for a while but once again fails after a few minutes.