Under the Remote Desktop section, "Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)."
While RDP uses both TCP and UDP, the UDP stream is often the culprit for 0x904 errors on unstable connections. Forcing RDP to use only TCP often fixes the "Extended Error 0x7" timeout. Under the Remote Desktop section, "Allow connections only
Navigate to: . Find Turn Off UDP On Client and set it to Enabled . Restart the Remote Desktop app. 6. Registry Fix (Last Resort) Find Turn Off UDP On Client and set it to Enabled
Search for . Click Inbound Rules .
The error is usually a symptom of a security mismatch or a network timeout . Start by disabling NLA and forcing TCP-only connections; these two steps resolve roughly 80% of cases. Registry Fix (Last Resort) Search for
Type the following commands one by one, hitting Enter after each: ipconfig /flushdns netsh winsock reset Restart your computer and try the connection again. 4. Configure Windows Firewall
This lowers security slightly, so only do this to test if it resolves the error. 3. Clear the DNS Cache and Reset Sockets Sometimes the network "map" on your computer is stale. Open Command Prompt as Administrator.