Philips Hue has suddenly stopped working

My integration with Philips Hue has suddenly stopped working.
I’ve tried reading back a backup, restarting all devices, uninstalling the integration in Playground, but no success.
What seems strange when I look in Thingsplex is that Futurehome seems to be trying to contact an IP address that I have never used at all? (see picture).
And that IP address is on a completely different network, and has nothing to do with my network?
Anyone have tips?