Okay previously I used a laptop in my college and the wifi working just fine. Since I've been doing a lot of video editing, I brought my desktop. However, I experience slow internet connection using my college wifi. Now, my phone, ipad and previous laptop all don't have this problem. So, I thought hey maybe I need to upgrade my wifi card and bought TP-Link N900 (previous one was N28505) yet the result is still the same. The network security is WPA2-Enterprise, the router just outside my room, I place my desktop at the same place as my laptop. Anybody have any idea what went wrong? Desktop running windows 7