My Rachio 2 is offline, cannot get it back on line

I’m tempted to do factory reset. However, if it is failed, I will lose all the program information and had to buy a new one asap.

by the way, what do you mean “describe the network”?

I have a dedicated wifi extender with 2.4G. It only has a few devices on it. All the others are working fine. It was working in the last couple years.

Thanks,
Jerry