Azure File Sync clound endpoint creation fails with no details as to why

Hi

I'm trialling Azure File Sync and have the server client installed on my 2012R2 server but when I create a sync group, which appears, from a notification perspective, to be at least a 2 part process the sync group is created successfully but the cloud endpoint creation process fails without any details as to why.

All I can see in the notification panel is the following:-

Cloud endpoint creation failed
Cloud endpoint 'testandy'

17 minutes ago

Sync group creation succeeded
Sync group 'TestAndyTwo'

17 minutes ago

If I click on the "More events in the activity Log" link at the top of the noitification window I can see a link for the sync group creation but nothing for the failure to register a cloud endpoint even though I have 2 cloud Sync Groups defined

SubID c8f5c681-6e6a-450b-9010-dec8cb9f8dda

Regards

Andy