At its core, is a generic, catch-all error indicating that the Remote Desktop session ended due to an unexpected problem. The error message frequently states: "Your Remote Desktop Services session has ended, possibly for one of the following reasons: The administrator has ended the session. An error occurred while the connection was being established. A network problem occurred." Because it is so general, this code alone is seldom enough to diagnose the specific issue. It merely signals that the connection was interrupted abruptly, either during the initial handshake or after a successful login.
On the , open the Group Policy Editor ( gpedit.msc ).
Micro-drops in Wi-Fi, high packet loss, or ISP routing instability. rdp 0x3 0x11
Under the Remote Desktop section, the box that says "Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)" . Click Apply and then OK .
: Confirm that port 3389 (the default RDP port) is open in both the Windows Firewall and any network-level security groups (NSGs) if you are using Azure or AWS. Quick Fix Checklist At its core, is a generic, catch-all error
Uncheck the box that reads: . Click Apply and then OK . 3. Verify Firewall and Network Profiles
The Remote Desktop Protocol (RDP) error code 0x3 with extended reason 0x11 is a frequent and frustrating roadblock for system administrators and remote workers alike. This error typically manifests as a generic disconnection message: " Your Remote Desktop Services session has ended, possibly for one of the following reasons..." followed by the specific error codes and 0x11 . A network problem occurred
The most common culprit. The client machine stores local "MSLicensing" certificates that can become corrupt or lose synchronization with the server. Security Layer Mismatch: A conflict between Network Level Authentication (NLA) and the RDP Security Layer (Standard RDP vs. TLS). Bitmap Cache Corruption:
Temporary display data stored on the client can sometimes trigger protocol inconsistencies during the initial screen draw. MTU/Packet Fragmentation:
: Network packets are too large for the route, causing silent packet drops.