Open gpedit.msc and navigate to: Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Security .
Even if RDP is "Allowed," specific security layers may still block the connection. www.remoteaccesspcdesktop.com Allow MSTSC explicitly "Allow an app through Windows Firewall" Ensure both Remote Desktop Remote Desktop (WebSocket) are checked for Private and Public. Allow another app , browse to C:\Windows\System32\mstsc.exe , and add it with full permissions. Third-Party Antivirus : Apps like Bitdefender have been known to block RDP. Add to their exception lists. Spiceworks Community Step 4: Azure VM Special Case
The /restrictedAdmin flag bypasses credential delegation and often bypasses license negotiation errors completely (Windows 8.1/Server 2012 R2 and later). Open gpedit
Firewall, VPN, or network hardware blocking the connection.
This is the most common "hidden" cause. If a server's self-signed certificate expires, it won't automatically renew, leading to random connection failures on specific hosts. Allow another app , browse to C:\Windows\System32\mstsc
If the client cannot handle the encryption level requested by the server, disabling NLA temporarily can restore access. On the host PC, go to . Click Advanced settings .
Navigate to .
Recent builds (22H2+) sometimes struggle with hostname resolution for RDP, throwing this error even when the network is fine.
When this error strikes, your remote session terminates abruptly, presenting a message stating that the computer cannot connect to the remote computer. This guide delivers the most effective, step-by-step technical solutions to resolve this issue and restore your workflow. What Causes Error Code 0x904 / 0x7? Spiceworks Community Step 4: Azure VM Special Case
Open Command Prompt as admin and run ipconfig /flushdns .
If the target is an Azure Virtual Machine, a corrupt certificate store is a frequent culprit. www.remoteaccesspcdesktop.com Azure Portal , go to your VM and select Run command > RunPowerShellScript Run this command to rename the key folder: