Remote Desktop Connection Error Code 0x904 Extended Error Code 0x7 Best [better] Access

When you need an immediate overview of how to prioritize your troubleshooting, use this reference table: Primary Cause Technical Component Best Resolution Speed to Fix TermService / MMC Delete expired self-signed certificate & restart service Corrupt MachineKeys Store Crypto RSA Directory Rename the MachineKeys folder via PowerShell and reboot Antivirus / Firewall Block mstsc.exe / rdp.exe Add executable exceptions to the firewall software NLA / Encryption Mismatch Group Policy (GPO) Enforce specific Security Layers in Local Group Policy DNS Resolution Failure DNS / Hosts File Connect via target IP address instead of hostname Step 1: Clear and Regenerate Remote Desktop Certificates

Click on the left menu. Click the Change settings button at the top right. Scroll down to find Remote Desktop . Check both the Private and Public checkboxes next to it. Click OK to save the changes. Verify Listening Port 3389 When you need an immediate overview of how

Locate the expired certificate, right-click it, and select . Check both the Private and Public checkboxes next to it

If your problem persists, it may be time to audit the Event Viewer ( eventvwr.msc ). Navigating to will often give you a granular timestamp of exactly which service or certificate failure triggered the 0x904 (0x7) error during the dropped session. If your problem persists, it may be time

The simplest fixes often work. Always start here.

Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\Client