And now it's gone into "hasn't been heard from" mode. Since I have it monitoring a house about 150 miles away it's a bit difficult to pull the plug and see if I can reboot it or otherwise troubleshoot.
I'm back to no updates (for three days) and I'm not sure why. I can access the rules and save changes, or so it seems, but I can't seem to get an update of temperature or any other sensor.