Recently we had a power outage, my main deco did not come back online afterwards. After checking with my second unit I figured out it was the plug was the issue, I replaced it with an older plug with same voltage I had lying around. the unit powered up and I got a solid yellow light, I reset it and re-added through the app, everything went as expected and it showed as connected again. I left it and when I next walked past it I saw a solid yellow again, I checked in the app and it was showing as offline.

I redid the reset, all went fine and it came online again, next time I walked past same thing again.

Looking for suggestions on what to do,  should I try get it online long enough to do some sort of update firmware or otherwise, do I need a specific TP-link  plug, should I just replace it with a newer mesh network as ont he website the M9's show as EOL?