Ring security system tip regarding base station placement: do not place it where there might be a lot of interference from other surrounding electronics. We’ve had our system since November 2018, including 2 extenders, 2 motion sensors, 4 contact sensors, 1 freeze/water sensors, and 4 smoke detectors. In the past week, they all went offline, one by one, beginning with the extenders, except for the motion sensors. We tried resetting them, which either brought them online temporarily, or not at all. Some of the contact sensors were stuck in open mode. So we called Ring support, always excellent, and was connected to Rheaume for assistance. We tried many other things, which proved only partially successful. She put me on hold and came back a little later. She asked about the electronics surrounding our base station. She said she could see a lot of interference with the signal between the base station and the devices. We had the Echo dot, Orbi mesh satellite, speakers, and battery backup within a few feet of the base station. She asked if we could move the base station. We were skeptical: why would the base station placement suddenly be an issue, after over a year of working? No recent changes had been made to the surrounding electronics. Nevertheless, we tried moving the base station to another room. One by one all the devices came online, after moving the base station, and are still online.