Fritz!box becomes regularly unavailable

this causes all sensors to become unavailable. I can trigger it by simply reloading the web GUI of the fritzbox a couple of times.

To me it looks like an issue with the fritzbox itself, maybe some overly strict throttling kicking in.

The problem is, some of my automations will trigger on AVM devices (sensor, powerplug…) becoming unavailable, but I want to reduce the number of false positives.

Is there a condition I can add that will check general availability of the fritz!box API? I can of course wait for unavailability to last for 30s or more, that would be the simplest, or I could check if some other device also became unavailable, but I thought maybe there’s a more generic check for the fritzbox API…