Video doorbell (1st gen) wi-fi disconnected, will not reboot

Hardwired video doorbell (1st gen). Has been disconnecting from wifi several times recently. Orange button reboot usually fixes the matter. This time, I can't do the reboot. When removing the doorbell from the hardwiring, it seems to act like the battery is dead. Holding the orange button does nothing. When I return the doorbell to the hardwiring, I see solid white circle. Not a wifi strength problem, no change in wifi service or password.