I am using wi-fi at a university which has several different networks I can connect to. My issue is that I have to re-connect between them about every 5 minutes or so because I keep being told I have no connection to the internet. Using an ethernet cable works fine. I have another laptop (older than what I am currently using) that doesnt have this issue and works fine staying on one network. My Laptop is an HP Pavilion g6. Don't know if this helps but in device manager I see under network adapters: Microsoft virtual WiFi miniport adapter, Ralink RT5390 802.11b/ g/n WiFi adapter, Realtek PCIe FE Family Controller and Teredo Tunneling Pseudo-Interface. Any information I need to provide I would be happy to.