And now they've all stopped working... And then came back 15 minutes later.. At least the beacons.

There's something going on here as the two that went AWOL yesterday did so at 18:37 and then they all went AWOL for 15 minutes today at 18:38.. It  COULD be a coincidence.. But if it happens again tomorrow around the same time..

We'll see.

EDIT: Oh, and the time reset on one of the modules.