@ColbyCann It's a pitty the support from TPLink is not good. To avoid red lights, I had to disconnect the copper cable from the third unit, but the performance decreased, as the distance from the...

@Sunshine After sometime, the problem got back, main unit working, green light, no web access, app shows second (connected to the third by wifi) and third (connected to main by copper) units offline,...

@Sunshine Downgraded to 1.2.5 and it seems to be working fine, but the webserver in the main unit is still not working. The main is not replying to ping, all others are ok. No red lights so far.

I noticed the whole system doesn't resume even turning off the second unit, which is the one I suspect. It needs a reset and complete reconfiguration in the first/main to have the web access back....

@Sunshine thanks by your reply. The network is configured as access point, not router. The ip assigned to each unit by DHCP and mac addresses are: 192.168.0.20 (first/main), 192.168.0.21 (second,...

My setup has one X60 as principal, the second connected to the principal by copper and two other units (one X60 and one M4R) connected to one of the first two using wifi. After a power loss, the...