If a third user attempts to log in, the system prompts them to disconnect one of the active sessions. To allow more than two simultaneous users, Microsoft requires the installation of the Remote Desktop Services role, a configured Remote Desktop License Server, and purchased RDS CALs for every user or device connecting to the server.
Sometimes, Windows Server 2012 R2 is not blocking the connection limit itself, but rather forcing multiple logins from the same user account to kick each other offline. You can fix this natively: 2012 R2 Server - allow more than 2 rdp sessions
This information is for educational purposes only. Bypassing Microsoft's licensing restrictions via patches or third-party tools violates the software's End-User License Agreement (EULA) and is not recommended for any production environment. Use of such patches is solely at your own risk, and you should always prioritize obtaining proper licenses from Microsoft to ensure full support and compliance. universal termsrvdll patch windows server 2012 r2 best
Automated "one-click" patcher tools found online frequently contain malware or adware. The safest and best method is using a free hex editor (like HxD) to apply the patch manually. Open termsrv.dll in your Hex Editor.
Elias exhaled. He restarted the Remote Desktop Services service. If a third user attempts to log in,
Key technical points:
The Universal Termsrv.dll Patch modifies the binary code inside termsrv.dll to make the operating system believe it is running in a multi-user environment, bypassing the two-user cap without triggering the need for a licensing server. Risks and Legal Considerations You can fix this natively: 2012 R2 Server
Disclaimer: Patching termsrv.dll violates the Microsoft EULA. This article is for educational and technical troubleshooting purposes only.