There was a lengthy thread with this problem last year already, but wasn't fully resolved IIRC. See...

First post always needs to be approved by a moderator. Your question is answered at: https://forum.tp-link.com/showthread.php?108813-DNS-Device-names-in-Omada

The Controller gets those name by reverse lookup of the IP from the DNS/DHCP server running on your router. Therefore, the names you see are the names the devices report when asking for a dynamic IP....

StephenR0 wrote For some reason, the US download of the EAP Controller for Windows is version 2.6.0 and the UK version is 2.6.1. Does anyone know if there's some good reason for this difference? No....

Both clients in AP client router mode need a subnet IP for the LAN network which is different from the WAN subnet IP, e.g. it should use the 192.168.x.0 subnet, where x is a number between 1 and 255....

WesleyD wrote It still would be a lot easier if the management VLAN was explicitly configurable :-) That's correct, but it's the price to pay for Easy Smart Switches being so cheap. Smart Switches...