I have a window's 8 laptop. It is about a year old. A few months ago it just suddenly stopped getting a strong wifi signal in my room. The wireless router is in the other room. I assumed that it was just our router, a belkin, and started using an ethernet cable rather then replace it. However, I am visiting my girlfriend and the router is in her room. I took my laptop to the other room and suddenly I only have one bar of connection and nothing will load, like it does at my house. Even sitting right next to the modem get 3 to 4 bar signal strength. I have no idea what to do. I have ran virus checks and malware checks. Nothing turned up. I tried checking to see if my wireless driver needed to be updated but it says that it's up to date and functioning properly, which clearly it isn't. My wireless driver is qualcomm atheros ar9485 802.11. Please help. 
