When you are dealing with a VPN in certain circumstances, you will occasionally encounter errors, even in Windows 10. One of them is labeled “806 (error VPN GRE blocked). If you see the pop-up box, your VPN is not going to work. The full context of the message reads like this.
“A connection between your computer and the VPN server has been established but the VPN connection cannot be completed. Error Code 806 – The most common cause for this failure is that at least one Internet device (for example, a firewall or router) between your computer and the VPN server is not configured to allow Generic Routing Encapsulation (GRE) protocol packets. If the problem persists, contact your network administrator or Internet Service Provider.”
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While that sounds worrysome, there are some easy steps that we will tell you about to help you resolve this problem.
Open the TCP Port 1723 – In the search box, enter the word “firewall” and open the Windows Defender Firewall with Advanced Security. Click the inbound rules on the left side of the screen. Click Action > New Rule > Port > Next > TCP. In the Specific Local Ports box, enter 1723 > Next > Allow the connection > Next. Make sure all 3 boxes are checked on the screen, and hit Next and then Finish.
Open Protocol 47 (GRE) – To get to this one, go back to the inbound rules section and select New Rule and Custom. Then, select protocol and ports on the left side of the window to open the options. Select GRE from the protocol type drop-down menu then click finish.
Switch Off Anti-virus Software – Just as you would expect.
Turn Off the Windows Firewall – Go back to the search box and type in Windows Defender Firewall. From there, you can turn it off.
Select Your Router’s PPTP Setting – Finally, make sure your router’s PPTP setting is on.
And there you have the most common ways that Error 806 – GRE Blocked can occur. Please share this post with your friends so they can learn the diffences between these two units of measure. Follow us @VPNFan for the latest privacy guides, VPN deals, and news.