Afaria - iOS 7.1 enroll failing - The registration authority's response is invalid

Hi

I am trying to enrol an ios 7.1 device on Afaria 7 sp4 on premise.

I am getting the following error

And from the iphone utility - Cannot retrieve SCEP Identity

Any thoughts or odeas on why we cannot enrol ios due to the above error message are greatly appreciated.

Thanks

Andrew