I've seen this in the past in the log a couple times. It was back again this morning. Any idea why this happens?
I am using Sandood's Ecobee suite and my check-ins are working with no issues. Perhaps your device has lost connection to Wifi, or some issue with Ecobee's servers for your location?
I am using my own app. No issues.
It could be. I do know that doing nothing other than rebooting the hub stopped it...I still have a couple newer messages in the log about connectivity.
"prior poll not finished, skipping..."
3 of these since rebooting 5 hours ago. I do think ASUS mesh routers have a weird bug for local devices though. I guess ..."you never know until you know" ...just part of troubleshooting 
