This night at about midnight UTC, we encountered a database issue. For about 30% of our customers with accounts in Frankfurt, their access points lost their registration in Sophos Central due to this and stopped broadcasting any network. You were affected if you got a notification at about that time stating that your access points are offline. All others not receiving this message weren't affected.
The issue has been resolved meanwhile. The AP and network configuration for these customers is still available, but as the APs lost their registration, they cannot recover by themselves. To recover, please do the following:
We're sorry for the inconvenience.