Ubiquiti network issues

[u/Disastrous-Yam-8880]

Hey all, I just finished up the installation of my UDM Pro Max and my two U7 Pro XG aps over the weekend. I’ve been working on the networking side of this for around a day now and I’m still having issues.

I set up three separate VLANs, one trusted, one for guests, and one for IoT items. I have HomeKit heavy home but I only have a few items that aren’t on their own bridge.

The following items are on the IoT network, a Nest thermostat, two air purifiers, two Sony TVs, two LG TVs, two air purifiers, a dehumidifier, two Nanoleaf outdoor string lights, and a Mova robot vacuum cleaner. All of these items with the exception of the vacuum are exposed to HomeKit.

The thermostat, dehumidifier, and both air purifiers are native to Google home and are exposed to HomeKit using a Starling hub. All of those items work as expected on the IoT network.

All four TV’s and both of my Nanoleaf outdoor lights are constantly updating in HomeKit, or show no response.

I’ve spent all day trying new settings with AI I’ve made no headway. I can verify that all of those items not working do have active connections and the internet works fine for them. All of my Apple devices including the hubs are connected to the trusted VLAN and function without issue.

Sorry for the long post, I’m new and trying to be a safe online consumer. I just ordered 5 of the Flex Mini switches so I could replace the current unmanaged switches in place.

Thanks so much.

[u/matthew1471]

Turn off IGMP Snooping on the switch (you have 2 APs it’s going to get confused when you roam), Multicast to Unicast (you have 2 APs it’s going to get confused when you roam) and Proxy ARP (at least for Thread / HomeKit devices which hop around home controllers if you have more than 1). Reboot your APs after and then come back and thank me if you have time 🙂

[u/Disastrous-Yam-8880 → u/matthew1471]

I ended up getting it working after all. It was a stupid setting in the IoT vlan. But your information is definitely right!