Provisioning failed because of an unsupported provisioning scenario. 12 Possible causes: WinHTTP Proxy is being used between ...

%11Provisioning failed because of an unsupported provisioning scenario. 12

Possible causes: WinHTTP Proxy is being used between the out of band service point and the AMT-based computer; the AMT-based computer is not on a wired connection; the FQDN of the AMT-based computer exceeds the maximum allowed length of 44 bytes. 

Solution: Remedy the unsupported scenario by doing one of the following: Reconfigure the proxy configuration or remove the proxy requirement; connect the AMT-based computer to a wired network; reduce the length of the FQDN for the AMT-based computer. Then retry to provision the AMT-based computer.%0