sorry to report, my father told me it happened again today, all wifi units went offline fro around 3-5 minutes early morning, about 7am. seems the issue is not resolved. i'm off work tomorrow, so i...

@M0untainD3w sounds a little familiar what i am currently experiecing. https://community.tp-link.com/en/home/forum/topic/644014

So, update, good news today. no reset happended, the entire system stayed good. like i said before, all i have done was replaced the E4 units with M5's, and turned of the ECO function completely (the...

Hi, thanks, there was an issue for me. i went from M5 to M5, but the backhaul wasn't active... i changed to M5 to switch, then switch to second M5. took about 20 seconds, but light on switch went...

Hi, i have just wired together two M5's, how do i know if the Wired backhaul is active (and being given priority), having trouble finding this indication? Thanks.

So the E4 units are replaced now with the M5's the ECO option now shows. i turned of the eco mode entirely, let's see what happens tomorrow.