My PC with windows 7 is the only computer with issues in the house. Ethernet works perfectly but wifi doesn't even when I don't have the ethernet hooked up. The wifi says it is connected but browsers, steam, and Itunes don't work. I have Bitdefender A/V and already tried uninstalling it, no change. I also uninstalled steam and Itunes with still no change. I even uninstalled and reinstalled the drivers for the wireless adapter. I tried looking and I don't recall downloading or installing anything around the time the problem started. Before I try replacing the adapter itself, I was hoping for help here since I saw a very similar problem in another thread.