Hi,

So my TP-Link Deco M5 system that has been extremely stable has unfortunately become very unstable.  The two mesh nodes (not the main node) which are connected via ethernet backhaul keeps dropping out (from solid green to flashing red).
I have tried removing them and adding them back in, but the same issues keep happening.

I notice that the firmware version is 1.7.3 on the two nodes, but I am not able to update them to 1.7.6, I guess this might be one of the root causes.

Please advice on how I should proceed