Mysterious ESP_######## SSID
My understanding is that the base station includes an espressif wifi chip whose purpose is to connect to a network specified by the user in order to get updates. But our base station has created its own SSID with the name like ESP_A123A5(01:3b:59:f2:34:8e) . (The italicized characters have been changed). It isn't always available, it has appeared and disappeared multiple times. It is definitely is coming from the base station and it is an open network. I was able to join the network using a smartphone and no password.
Has anyone else seen this or have an explanation?