That’s a short one for Unifi (I’m on Network version 8.1.113) users struggling with the connection between the Home Assistant Bridge and Apple Homekit. In my installation, the connection attempt constantly ran into a timeout.

First of all make sure the port of the HASS Bridge is enabled in your firewall rules. In my case it’s port 21064, which should be the default one.

HASS Bridge

In your Network settings, enable Multicast DNS and IGMP Snooping for the involved VLANs:

Unifi Network

If you try to connect it via WiFi, enable the Multicast Enhancement in your WiFi settings:

Unifi WiFi

Now Homekit should be able to connect to your Home Assitant Bridge.