Remote — Desktop Connection Error Code 0x904 Extended Error Code 0x7 Exclusive
Troubleshooting Remote Desktop Connection Error Code 0x904 and Extended Error Code 0x7
Find the hidden file named Default.rdp (you may need to enable "Hidden items" in the View tab) and delete it. Restart the RDP client. Step 5: Registry Tweak for Security Providers Firewall Blocking: The local firewall on the host
Restart the service to generate a new one: Open Command Prompt as Admin and run:net stop termservice then net start termservice. 2. Resolve Azure VM Certificate Corruption Firewall Blocking: The local firewall on the host
Before attempting a full handshake, the client pings the host specifically for certificate validity and MTU (Maximum Transmission Unit) size. One-Click Cert Renewal: Firewall Blocking: The local firewall on the host
Workarounds
- Firewall Blocking: The local firewall on the host machine (or network firewall) is blocking the RDP port (default 3389).
- Stuck User Session: The user account trying to connect already has a disconnected or active session on the host that has become unresponsive.
- Network Profile Mismatch: The host machine has its network profile set to "Public" instead of "Private," causing Windows to block inbound RDP traffic.
- RDP Service Failure: The Remote Desktop Services on the host have stopped responding.
- Ensure the gateway’s public certificate includes the hostname users are connecting to.
- Re-import the gateway certificate into the client’s Trusted Root CA store.