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

Rating: ★★★☆☆ (Moderate Difficulty to Resolve) Status: Connection Handshake Failure

If you are encountering Remote Desktop Connection Error Code 0x904 with Extended Error Code 0x7, you are likely stuck at the "Configuring remote session" stage. This error is particularly frustrating because it is not a straightforward network failure (like a firewall block) nor a simple credentials issue.

In technical terms, this error combination is distinct. Here is a breakdown of what is happening and the "best" way to fix it. Security note: This reduces security

NLA requires stronger security negotiation. Disabling it forces the older RDP security layer, which bypasses the 0x904/0x7 error.

On the remote computer (you need local or physical access): On the client (your machine):

Security note: This reduces security. Only do this on internal/VPN networks.

If you manage the remote Windows Server (2016/2019/2022): Then try connecting.

If you need immediate access and cannot troubleshoot right now, try using the Web Client instead of the desktop app.

On the client (your machine):

Better: Edit .rdp file with Notepad and add:

authentication level:i=0
enablecredsspsupport:i:0

Then try connecting.