Can you attempt a soft reset? You won’t lose any devices, automations, etc.
- Disconnect the power cable from the Hub (2015 / v2 hub only - remove all batteries as well) .
- Make sure ethernet is connected
- Using a pin or a small tool, hold down the reset button on the back of the Hub
- While holding down the reset button, reconnect the power cable to the Hub
- Continue holding the button for about 15 seconds
- When the LED on the front starts flashing yellow, release the button
The hub will re-download the latest firmware and the Hub’s LED will go through several different colors and patterns. When it’s done, the LED will return to solid green. This can take 15-20 minutes depending on your internet speed.