i have ten terminal license it was configured to licensing setting on concurrent basis how it change to device license i dont knowhow can i revert the settingsis it possible if i remove and reinstall termail server then again come on concurrent basis.

Hello Faheem, It’s an important information what version of operating system you’re using. Based on my experience, there are similar issues on Windows Server 2003-based terminal services, for more information, please refer to: (KB834651) Terminal Services licensing mode changes from Per User or from Per Device to an invalid value after you add or remove a Windows component http://support.microsoft.com/default.aspx?scid=kb;EN-US;834651 Please give it a try and let us know the result. Thanks. Regards, · Lionel Chen