Teamviewer Firewall Whitelist ❲2024-2026❳

You’ve checked the internet. The remote computer is powered on. TeamViewer is running. So, what gives?

Few things are more frustrating in IT support than the dreaded "Connection failed. Partner did not connect to the router." error message. teamviewer firewall whitelist

Whitelisting means telling your firewall: "Do not inspect, block, or question traffic coming from TeamViewer’s official servers. Let it pass immediately." You’ve checked the internet

| Protocol | Port(s) | Destination | Purpose | | :--- | :--- | :--- | :--- | | TCP | 443 | *.teamviewer.com | Web login & authentication | | TCP | 5938 | *.teamviewer.com | Primary data channel | | TCP | 80 & 443 | master.teamviewer.com | Fallback & master routing | teamviewer firewall whitelist