In addition to the usual generic advice for obstinate IoT devices (temporarily move the device closer to the wireless access point, disable all radios except 2.4 GHz in order to make that the only band available for the phone and device to connect to, etc.), I recently ran across this post as another idea to try:
The speaker thing makes me wonder if your camera is failing, but I’m stubborn enough that I’d probably try to revive the camera and get it connected anyway.
