Trendnet Tew-639GR wifi issues

Hi there guys, new to the forum. I have a problem with my wifi. Every time I turn off my computer(usb wireless N adapter) and restart later it wont connect to the wifi. It shows up in the list(windows 7 64bit)of networks as trendnet with a red X. I then proceed to power off router and back on 2 or 3 times before it will again lease out an ip. Anybody have an issue similar? What config changes need to be made to stop this? Thanks guys.

well never solved the problem but I have a solution. Disable security completely and make the network hidden ssid. only thing that works for now except now my cousin cant connect with his samsung galaxy II but my evo connects fine so IDK.