"Limit number of connections" and set it to your required number (e.g., 999999 for unlimited). 2. The Third-Party Method: RDP Wrapper Library
: It works flawlessly on standalone workgroup servers.
Windows Server 2012 R2 is a robust operating system, but its default Remote Desktop Services (RDS) configuration limits concurrent connections. By default, administrative mode only allows two simultaneous sessions. For businesses needing more users to access the server simultaneously without purchasing expensive Remote Desktop Services Client Access Licenses (RDS CALs), modifying the termsrv.dll file is a common workaround. universal termsrvdll patch windows server 2012 r2 best
Go to the tab, click Advanced , change the Owner to Administrators , and grant your account Full Control . Create a backup copy named termsrv.dll.bak . Open the original termsrv.dll in a Hex Editor.
Before applying the patch, ensure you have: "Limit number of connections" and set it to
Before using a patch, you can increase RDP capacity using native tools, though this usually still limits you to sessions unless you purchase RDS CALs:
Which of these would you like?
1. Group Policy Adjustment (For Simultaneous Same-Account Logins)
If you want to avoid patching critical system binaries, consider these alternative methods: Windows Server 2012 R2 is a robust operating
After completing these steps, your Windows Server 2012 R2 system should accept multiple concurrent RDP connections without interruption.
Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Connections