@ndb217 Quick follow up here. I verified that I had multicast to unicast enabled on the controller. I also verified that I did *not* have IGMP running on my switch (which I thought I did). After...

@Clive_A Any progress on this? I have gone through my controller and not really seen anything ovbious that would casue the issue. I have not yet started poking at the internals of the EAP.

@Hank21 Multicast to unicast is enabled. I built config for igmp last night, I thought it had been enabled but it was not. Thank you for the pointer - will report back with results.

@ndb217 Attached is a screenshot of the packet capture viewed in wireshark

I have two EAP670 APs. For the last few months (since 1.0.10, if I recall) I have seen what looked like a spanning tree loop that would occur around weekly, but sometimes more frequently. It turns...

@Clive_A Yes, I am aware that it is not wireshark - it is a packet capture using tcpdump (and sumirily libpcap) directly, the same library that wireshark uses and generating the same output data. I...