Solution

TeamViewer Protocol Negotiation Failed Error In Windows 10 Fix

TeamViewer Protocol Negotiation Failed Error In Windows 10 Fix

We advise you to go through all the solutions as they are scenario dependent.

  1. Solution 1: Disable Windows Firewall. As we mentioned, the issue can be due to the Firewall functionality of Windows. ...
  2. Solution 2: Disable Third-Party Antivirus. ...
  3. Solution 3: Scan your PC. ...
  4. Solution 4: Update TeamViewer.

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