I'm running TeamViewer 12 on Windows 10 and I keep getting a popup saying: "Please check your internet connection. Most likely you use a proxy server and you have to enter the proper information in the options dialog." I'm using Comcast Wifi at home. My other computer which uses a wired connection is fine. I have Windscripe VPN installed, but both VPN and the included firewall are off and shouldn't be affecting anything.