What Does Error Code 0x1104 Indicate Concerning RDP?

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I have a Windows 10 PC, and I am not able to start any RDP connections, because an error pops up whenever I try. It shows the error,” Because of a protocol error detected at the client (code 0x1104), this session will be terminated.” How can I fix this error?

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Answered By 0 points N/A #325115

What Does Error Code 0x1104 Indicate Concerning RDP?

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This error can occur on the firewall side or the remote PC side. On the remote PC side, there can be your third-party antivirus software blocking the remote connections for security purposes or, Windows firewall blocking any remote connections or, your PC is not able to accept remote connections.

On the firewall side, ensure that your Firewall is updated and is of the latest version and you have configured the client routes and IP. Ensure that your Firewall can reach the remote server. You can also try removing all the checkmarks present in the Experience tab of RDP client settings.

Sometimes this error can happen when applications are trying to use the same port. In this case, open your command prompt and type, “netstat -ano.” It indicates all the applications that use all the ports. So note down the PIDs using port 443, the port used for non-standard connections. Download tcpview, and run it. Search for PID in the list shown. You will find applications that are taking over your RDP port. To uninstall or temporarily disable or kill that application.

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