Got tcpdump running on the doorbell. It's generating UDP broadcast packets for every event, but on the other end of the link I only see a small subset of those packets. Naturally wifi is involved, but I have zero packet loss. How do I figure out where they're getting dropped?

Topology is: doorbell→switch→AP→Home Assistant device tcpdump on doorbell shows packets that tcpdump on the Home Assistant device never sees. There's a moderate "Invalid misc" count on the wifi interface, but it doesn't seem to correlate with when the packets vanish.

Hmm, disabling power saving on the HA wifi may have improved things here? Thanks to everyone letting me know that broadcast is just inherently fucky over wifi

Yeah, this is definitely significantly better now. I'm still losing a small number of the packets, but it sends each one four times, so with luck enough will get through?