@ray I have a very similar behavior. OS 3 DC connected to a Netgear Nighthawk R7000. In my case, the routers seems to detect the device as connected, but the web UI is not responding.
I have a script checking every 15 seconds for the status, in order to notify me of programs/stations activity (since no webhook or mqtt are available). I don’t know if there’s a correlation, and in my case a reboot helps too, unless a day or two.