Windows 2003 - Terminal Server License server migration RRS feed

  • Question

  • Goodmorning!

    I have a kinda dire question, concerning a migration I'm kinda scared of.

    We have an old fileserver running on Windows 2003. Due to errors in it's diskmanagement, we descided to move all content to a new fresh server and reorganise the filesystem. But this server also serves as a 'terminal server licensing server'. I already created the new Windows 2003 server and this one is working fine. I also installed the 'terminal server license server' addon and have the CAL information ready to move it to the new server.

    I have a few questions though:

    We have 5 different locations all working on thin clients. And I'm scared that they will loose connection and won't be able to find the new TS license server. Do the clients automatically refresh their license once they see the new terminal license server?

    Once I de-activate the old terminal license server, do all clients loose connection then? Or do they keep their license until the license date expires? I need to know this, to plan the migration. In case of emergency, if thin clients can't find the new server, I need to have a backup plan.

    Thanks in advance for any responds!

    Wednesday, January 2, 2013 8:00 AM


  • Hi,

    Thanks for your post.

    Please note that a client received a TS CAL from the previous license server will continue to operate as normal until its TS CAL expires. When the previously issued TS CAL expires, the terminal server will request a new TS CAL from the new TS CAL from the new license server on behalf of the client. So after license migration, ensure that the terminal servers in your environment can contact the new license server, use it to assign new TS CAL.

    For more detailed information about Terminal license migration, please refer to the following article. Hope it helps.

    How to move Terminal Services CALs from one license server to another in Windows 2000, Windows Server 2003 and Windows Server 2008


    Best Regards,


    Aiden Cao
    TechNet Community Support

    • Marked as answer by Aiden_Cao Monday, January 7, 2013 2:39 AM
    Thursday, January 3, 2013 2:36 AM