How to "unsync" a device?

We have edited our installation parameters, but cannot seem to initiate a new grant request/registration with the SAS, because we are getting an error that says All devies are already synced. How do I "unsync" them, or inform Maestro that we don't care about the data on the AP any longer?

(I'm using the cloud platform with 16.2 (Build BETA-3) firmware)

I had to re-enable cbrs on the AP, so that the sync could complete. Then I needed to delete the AP, and finally then needed to de-register the AP from the SAS in the domain proxy menu.