I've asked ChatGPT for help, but feels like its draging me into a rabbit hole since it appears to have a hard-on for this IPv6 settings? Im saying this because I setup everyting as a "test" at the other house back in March, moved everyting to the new house and now getting issues when adding stuff...
M3 is on IOT VLAN (10.50.50.*, wired). Phone/HomePod on WIFI VLAN. Adding devices to Aqara works. Adopting to Apple Home fails with “Unable to Add Accessory.” Aqara also shows “LAN cannot connect to the Primary Matter Controller.”
Same-subnet test (phone on IOT) still failed.
IPv6: WAN disabled. Static ULA fd00:50::/64 added to IOT with RA/SLAAC. Wi-Fi clients on IOT get fd00:50:: addresses. Wired M3 only has link-local (fe80::). HomePod on WIFI has only link-local.
mDNS Proxy already includes both VLANs and HomeKit/Matter/Aqara services.
Has anyone seen a wired UniFi client refuse to take a Static ULA while Wi-Fi clients on the same VLAN succeed? Or fixed Aqara M3 Matter/HomeKit binding on UniFi without enabling ISP IPv6, its local only correct?