Hello Ndzlow! Thread Border Router are not assigned a room in the Thread network, that's why it is Unknown Room. And the report their name as Apple Thread Router + 2 digits - this is displayed. All correct. You may as well use the app Discovery, it's free if you don't like the way it is displayed in Eve. In iOS (https://apps.apple.com/de/app/discovery-dns-sd-browser/id305441017) or the version for the Mac (https://apps.apple.com/de/app/discovery-dns-sd-browser/id1381004916?mt=12). In the app at _hap._udp. you will find the Thread devices, at _meshcop._udp. your Thread border routers.
Jun 17, 2021