Removed Endpoint Protection Manager with Cleanwip results in deactivated Windows

Hi,

W have uninstalled Enpoint Protection Manager and Endpoint Protection on our SBS 2011 server.

We tried to uninstall using remove Programs,but this was not possible.

Then we used Cleanwipe from the tools DVD (2). It removed the programs, but know our SBS 2011 server claims that it is not licensed anymore. we cannot activate windows again.

We have tried to activate with the normal internet cannoction method, but vthis does not work.

Then we tried the Automated Telephone way, but this is also failing.

Has anybody else had this experience, any ideas, how to activate Windows again?