Home app no response when internet is down, but still connected to WIFI

Hello!

Yesterday, our internet went down but not our wifi network. However, I noticed that Apple Home app on iPhone started showing all Home Assistant devices with ‘no response’. My understanding is that HomeKit integration with Home Assistant is local and I should still be able to manage control my devices using Siri. I can manage my devices through HA iOS Companion app but not Home app.

Is there something wrong with my setup that’s preventing local integration/communication between HomeKit/Apple Home app on iOS and Home Assistant?

My Setup:

  • Home Assistant on VM on Proxmox
  • IOT VLAN where HA is connected
  • All IOT devices on IOT VLAN
  • 3 Apple TVs and 1 HomePod mini which can act as Home Hubs on IOT VLAN
  • pfSense Router