I have 4 of these plugs, and they have been working perfectly up until 2 days ago. One at a time they will go Local Only in the Kasa app, Alexa says they are undiscoverable. I have hard reset them, and added them back. That worked for a few hours. Now, none of them will connect. I can't keep resetting them every few hours.
What's going on and how do I fix this??