Not so bad, that means it's nearly fully implemented.

Here, finally : https://community.tp-link.com/en/business/forum/topic/734414 6) Added support for LAN DNS in Site View > Settings > Wired & Wireless Network > LAN. This feature requires gateway's...

5.15.6.4 and still no local DNS. So when it will be released if not in 5.15 ver? This company is a joke.

@s4zando look previous posts, it will be released within next release but for now, no ETA.

Nice to have !

@hammer86 as he saids, it's planned, just wait they release the FW. I'm fed it up with this too, but it will be available soon. Some people wait from 2 years... We've never been so close. Patience is...