Also just now got a reboot on the other device. What do we do now, TP-Link?

Just got a reboot on the brand new unit they sent, for the first time since applying the above network changes--the other unit has yet to restart, but we'll see. The underlying issue is apparently...

@MikeP That was my thinking--the solutions seem like a workaround for a firmware bug that causes a crash upon certain situations of lost connectivity. Cautiously reporting that I haven't had any...

I chatted with L2 support today and they advised the following changes: -Updating primary DNS to 8.8.8.8 and secondary DNS to 8.8.4.4 in your router settings. (How to do that varies by your router...

The brand new replacement unit they sent is now crashing--light stays solid white but none of the buttons do anything while in the crashed state. Looks like they replace broken units with even more...

@NomanA Thanks for the suggestion--I unfortunately have already tried singing out/uninstalling the app and the issue persisted for days afterward.