After network segmentation, some integrations are no longer detected

I’m running HA in a docker image on a Synology NAS. The NAS is linked to my router via LAN. The docker image uses host for network.

My router is a Synology rt2600ac on SRM 1.3. It broadcasts two WIFI networks:

SSID: Gold
IPv4 subnet: 10.0.4.1/24

SSID: IoT
IPv4 subnet: 192.168.2.1/24

The devices that still work are the Hue Hub (due to being connected to the router via LAN), and MyQ (192.168.2.47).

The devices that are no longer detected are LIFX-Tile (192.168.2.112), and Nanoleaf-Shape (192.168.2.100).

I’ve been messing around for several days, and am out of ideas on how to get this set up again. I’ve tried removing the LIFX and Nanoleaf entities and integrations, opening all IPs across both networks in firewall rules, and a few other things.