Remote Desktop Connection Error Code 0x904 Extended Error Code 0x7 Best May 2026
Troubleshooting Remote Desktop Connection Error Code 0x904 with Extended Error Code 0x7
- Open Remote Desktop Connection
- Go to Advanced tab
- Under "Security", uncheck "Always prompt for credentials"
- Select "Connect" → Save as
.rdpfile if needed
- Run gpedit.msc → Computer Configuration → Administrative Templates → System → Credentials Delegation → Encryption Oracle Remediation. Set to “Mitigated” or “Vulnerable” temporarily to test (prefer Mitigated).
- Reboot or run gpupdate /force.
- Name:
AuthenticationLevelOverride - Value:
0(This sets authentication level to "No authentication").
Fix 2: Update both computers
Run Windows Update on both the client and the remote server. Error 0x7 often appears when CredSSP versions differ. Install all pending updates, especially: Open Remote Desktop Connection Go to Advanced tab