@Michael71 There is mesh in latest software. Download it from product support page. https://www.tp-link.com/en/support/download/eap660-hd/

@petervdveen It looks like everything is ok but, the only thing I would change is where the controller is located, I do not know if it has anything to say but I would put the controller on the same...

@PopoyMaster LAN/NETWORK Settings have no effect if you don't have a TP-LINK Router or TP-LINK Switch. VLAN setting is on SSID in your case.

@PopoyMaster Yes this will work, you can pick what pice you want from TP-LINK Omada series and use it with another brand. 1. Can Omada able to point DHCP Server for VLAn 10 and VLAN 20 to Cisco? Yes...

@runtime I Use TCP/UDP on port 29810 and it work, but doc sey only UDP, so it should be right. I have som Cisco forewall to and ther is alo TCP/UDP on 29810 the other port is TCP SO you can test and...

@runtime If you is 100% sure that your firewall is right is this a case for TP-LINK support, I never have problem with adopt of TP-LINK EAP. And Unifi is no different to TP-LINK, firewall have to be...