Follow up the give steps in below article.
37839.active-directory-limit-concurrent-user-logins.aspx

You can get useful resources here,
Limit-concurrent-logins-in-dc13d8cb

Hi,

There is no default option in active directory let you to avoid a user to logon on many machine in same time.
you can create a custom solution to trace the user logon and logoff by creating a shared file when a user logon. Then you create a GPO to launch a a script when user logon and another script when he logoff to update this file and check if the user is already logged when he try to logon:

Please don't forget to mark this reply as answer if it help you to fix your issue

Hi,
As @Thameur-BOURBITA and @udara mentioned , to Limit concurrent user logins, the logon script should be considered.
For deploying this step by step, refer to the link provided by udara.
Please feel free to let us know if you need further assistance.
 
Best Regards,