My client's second home in the Hamptons has been losing power for around an hour at a time roughly twice a day for the last week. No one is at the home currently, so the info I have is mostly limited to data from monitoring systems.

What I'm seeing is that the OvrC hub goes offline, and then around an hour later I get a notification that the main controller has rebooted. (OvrC going offline could be a comm issue, but the main controller rebooting is clearly not.)

On Friday, the electric company went out to take a look, and concluded the problem was not on their end. So, essentially, somewhere between the demarc point and the home's power distribution, something cuts out for around an hour at a time twice a day for a week.

What could cause the house to lose and regain power like this?