I called orbit on Friday, waited on hold for a while. The support tech was good and responsive. He logged into my machine using their back end system and he could see that when I turned on a the program that it was shutting off automatically. He had me turn on and off smart watering, which I did and while he was logged in, it started working. He stayed on while we ran through some tests.
Ever since my timer has worked perfectly. The support tech wasn’t sure what fixed the problem.
I think that it somehow reset the server connection when he got into it on the back side.
For other people posting, I’ve had my timer going on the 3rd season. I’ve never had a problem like this and It has been running fine since.
It is a busy season for Orbit, but call support and visit with them. You may have better luck.