I have a large number of Wyze plugs that are going into the dumpster. They work fine for a while then after a power outage they need to be reprogrammed as they do not reconnect to WiFi. Yes I have tried to all the reset procedures etc… I know these things are cheap but this could cause someone significant loss if they are counting on these devices. It is not my network as I have numerous other IoT devices like Sonoff , Shelley, and other ESP8266 devices that work fine.
I will have one of these devices analyzed to determine what has failed. Once that analysis is complete I will report back what was found. If it was one device I would chalk it up to a bad device. In this case I am talking over twelve all the same age. The reconnect functionality has worked in the past.