Then use a non-TLS client (RDP with security layer set to "RDP" only – but diagnostic):
| Aspect | Assessment | |--------|------------| | | Medium – prevents connection, but not a crash or data loss. | | Ease of fix | Easy to complex depending on environment (self-signed → one-line fix; corporate CA → policy update). | | Security impact | Ignoring or bypassing it (Fix B/D) weakens security. Proper fix (Fix C) strengthens it. | | Common in | Workgroup RDP, small business servers, Azure AVD with proxy inspection. | i remote desktop connection error code 0x904 better
The keyword here is “better” — so let’s move beyond turning the firewall off and actually diagnose the root cause. Then use a non-TLS client (RDP with security
Restart the Remote Desktop Services. Open PowerShell as Administrator and run: Restart-Service termserv -Force . Proper fix (Fix C) strengthens it