Disable TeamViewer from “stealing” Port 80?
Open port 5938 (TCP) on your firewall.
Change the following registry keys.
[HKEY_LOCAL_MACHINE\SOFTWARE\TeamViewer\Version4] Key ’GatewayAllowed’ set to 0
[HKEY_LOCAL_MACHINE\SOFTWARE\TeamViewer\Version4] Key ’ListenHttp’ set to 0