If the RD Gateway uses a self-signed or expired certificate, the client may drop the connection during a security handshake refresh.
Follow these steps in order, moving from the most common client-side fixes to advanced server-side configurations. Step 1: Force RDP to Use TCP Only (Client-Side)
Under > Edit Properties > Security , try switching the Security Layer from "SSL (TLS 1.0)" to "RDP Security Layer".
: On the remote server, open the Services.msc console. Verify the following services are Running and their startup type is Automatic :
For system administrators and IT professionals, few things are as frustrating as being locked out of a critical server or virtual machine. When attempting to establish a Remote Desktop Connection (RDP), you might be greeted with a vague dialog box displaying and Extended error code: 0x7 . rdp error code 0x3 extended error code 0x7
The RD Connection Broker (tssdis.exe) service failing to start automatically after a reboot.
to ensure the remote host is alive and reachable by its IP address or FQDN. Test with Administrative Switch : Try connecting via the command line using mstsc /admin
In this post, we’ll break down exactly what this error means and provide four proven methods to resolve it.
net stop NlaSvc net start NlaSvc
Ensure the RD Connection Broker service is running on the target server. Manually start tssdis if it is stopped.
The Remote Desktop Protocol (RDP) error with extended error code 0x7 generally signifies a connection timeout or general connectivity failure between the client and the remote host . This specific combination often occurs when the remote computer is unreachable due to network disruptions, firewall blocks, or service failures on the host machine. Potential Solutions
One of the most common causes for the specific 0x3 / 0x7 combination on Windows Server is the failure of the service to start automatically after a reboot or update. Open Services.msc on the remote server. Locate the Remote Desktop Connection Broker service.
The combination 0x3 + 0x7 suggests a failure where the client locates the server (overcoming initial unreachability), but the connection process stalls or is rejected during session setup. If the RD Gateway uses a self-signed or
The error code (0x3) and extended error code (0x7) provide clues about the connection breakdown:
If the issue began immediately after a security hardening cycle or an update, try reinstalling the broker component to clear bad registries: Open on the host machine. Click Manage > Remove Roles and Features .
Expand the directory and click on Certificates .