Check if the 2nd LED lights are still lit up on both the powerline units, if not pair them again.

Did you literally enter "Admin"? It should be small letters, admin. If you just want to disable WiFi, simply push the WiFi oin/off button on the back of it.

It's limited to no more than 20 it seems. You can feedback to the tplink support, they may take it into consideration

I don't see a way to do it on the tplink router

The 169.254.x.x is an invalid IP address. Check on the other mobile devices if they can get correct IPs from W8980. Then check the IP and default gateway on your wired PC to comfirm who is the DHCP...

pdxlhm wrote Lots of small problems during the set-up and even now only 1 of my 3 Deco5 shows up in the app. But I'm sure that all are sending out a good wifi signal, and from my contacts with...