@NikosK i didn't think of this yesterday but there is also this artical that may help. https://community.tp-link.com/en/business/forum/topic/245838

This really sounds like the other devices aren't resetting to factory default. Factory reset is done with it plugged in. Hold in the reset button for 5 seconds should start the process. Default...

@NikosK Does the default account work on the router after reset? As long as it does, I would check that you are on the latest firmware for everything. After that don't set a configuration on the...

Under wired networks > Lan, edit the configured lan you want to get dns from pihole. After that you just change the DNS server from auto to manual and input the static IP for your pihole server. Make...

@NikosK After equipment is adopted into the controller it is managed through the controller, i.e. direct login is lost. So you would adopt devices and then configure them in the OC200 after that....

I do agree that it would be nice for it not to be so buried. On site, it is just easier and faster to do a google search for "whats my ip" as things are now.