Here is a targeted troubleshooting piece to resolve this error.
Some users have resolved 0x904 by switching from the built-in mstsc.exe to the modern app available in the Microsoft Store, which uses a different connection engine. Here is a targeted troubleshooting piece to resolve
Restart the Remote Desktop Service via Command Prompt (Admin): net stop termservice followed by net start termservice Windows will automatically generate a new certificate. www.remoteaccesspcdesktop.com 3. Update Firewall Rules Ensure RDP is allowed through the firewall on Search for "Allow an app through Windows Firewall" Remote Desktop Remote Desktop (WebSocket) are checked for both 4. Azure Virtual Machine Specific Fix If this is an , certificate store corruption is common. www.remoteaccesspcdesktop.com Run Command feature in the Azure Portal to execute: certificate store corruption is common.
Are you connecting to a or a cloud-based VM (like Azure or AWS) when this error occurs? Unable to RDP into some Windows Servers - Error code: 0x904 Here is a targeted troubleshooting piece to resolve