Remote Desktop Connection Error Code 0x904 Extended Error Code 0x7 File

Your Windows Defender Firewall might block the RDP application if the network profile changed from "Private" to "Public." Additionally, third-party firewalls or proxy servers inspecting RDP traffic can interfere with the SSL/TLS handshake, forcing the socket to close. Load balancers (like HAProxy) that strip or modify the TLS data stream can also force a disconnect with a 0x904 error.

To fix this error, it helps to understand what is breaking down in the RDP architecture: Your Windows Defender Firewall might block the RDP