MAK activation not working

Hi All,

We are using MAK activation in our environment. Recently, we have purchased a new MAK key as we were out of activation keys.

Now we are using new MAK key for Winodws 7 activation and it is working fine on all location except one. All TS related to that location has already been updated with new MAK key but still unable to activate window.

I have tried same TS in VM and it is working there, so unable to understand why it is not working on that location.

Any suggestions/solution.