So, got called out on service today. Our CC3 didn´t show up in the cloud, so I went to the place and can now see that the Cloud ID field was suddenly empty. Added ID, CC3 back up in the purple cloud.
Also, clock had drifted, it was 14 minutes in front of the atomic clock, i.e. 11:17 instead of real time 11:03.
Unit has been online all the time as far as I am aware.