I just finished building a pc for the first time and it works perfectly except for the fact that I can not access store.steampowered.com and I'm not sure why. I'm using a TP-Link TL-WDN4800 wireless card with an Asus P8Z77-V LK motherboard. I can connect to any website I have tried so far without any problems except for steam. My little brother was able to access steam on his computer without any problems.