⭐ (1/5)
This error often triggers the generic message, "This computer can't connect to the remote computer," even if the target machine is powered on and accessible via ping. Below is a comprehensive guide to identifying the root causes and implementing the technical solutions required to resolve this issue permanently. Key Causes of Error 0x904 (Extended Code 0x7)
Locate the certificate assigned to your computer's name and check the . ⭐ (1/5) This error often triggers the generic
Navigate to -> Remote Desktop -> Certificates .
If your network has a Maximum Transmission Unit (MTU) mismatch (e.g., VPN or PPPoE connections), the HTTP CONNECT packets sent to the RD Gateway may be fragmented. The server sees a malformed request and returns an invalid response, triggering 0x904. Navigate to -> Remote Desktop -> Certificates
Did this error start or certificate renewal? Are other users able to connect to the same machine?
Execute the following command to reset the keys folder: Rename-Item -path "C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys" -NewName "MachineKeys_old" . the VM from the portal. Quick Alternative: Microsoft Store App Did this error start or certificate renewal
Here is the "solid story" on why it happens and how you can actually get past it. The Meaning of the Error
The error code 0x904 and extended error code 0x7 when trying to establish a Remote Desktop Connection (RDC) can be quite specific and may not have a widely documented solution. However, I'll guide you through some general troubleshooting steps and potential solutions that might help resolve the issue.
Press Win + R , type , and press Enter to open the Local Computer Certificate Manager. Navigate to Remote Desktop > Certificates .