When connecting to VPN every message goes through VPN server and it could not be forwarding your messages to that port SQL server is working on. Try. disable VPN settings->Properties->TCP/IP properties->Advanced->Use default gateway on remote network.

Apr 16, 2017 TeamViewer – The Remote Connectivity Software TeamViewer for mobile device support. TeamViewer is the world’s first remote support technology to allow screen sharing on iOS devices from any desktop or mobile device. All Android devices can also be similarly accessed making us the ideal platform for supporting employees in a BYOD or large organization with all kinds of employee devices. TeamViewer: The Remote Desktop Software Your Digital Workforce, Instantly Connected and Remotely Supported Maximize remote workforce productivity with Teamviewer Remote Access and Remote Support. Enable dispersed teams to remote in to the devices they need, the moment they need them – without requiring VPN.

TeamViewer is an application that doesn't require port forwarding unless you are trying to operating via a local LAN-based connection method, which, if you're trying to forward ports, doesn't sound like it here.

How to forward ports over TeamViewer - Quora

TeamViewer for mobile device support. TeamViewer is the world’s first remote support technology to allow screen sharing on iOS devices from any desktop or mobile device. All Android devices can also be similarly accessed making us the ideal platform for supporting employees in a BYOD or large organization with all kinds of employee devices.

TeamViewer Ports - Which TCP & UDP Ports are Used by This article shows the ports used by TeamViewer, and explains how to block or allow these ports on your computer network. Ports used by TeamViewer. The ports used by TeamViewer are TCP 80, TCP 443 and TCP 5938. How to Allow TeamViewer Ports. You do not need to redirect any ports in order for TeamViewer to work. Teamviewer VPN Feature Explained: How it Works | VPNpro