reply to BimmerE38FN
Re: [Help Me] DIR-655 / non-stop IGMP queries I'll consider that, thanks.
The "problem" has not occurred in 2 days now (that I'm aware of). Perhaps I'll leave Wireshark running for 48 hours and trap IGMP's to see if it's still there.
It might be a one off bug that only occurs after a re-boot.
Filtering with Wireshark, presently, the router is issuing the IGMP request once every 2 minutes and 5 seconds. That's reasonable.
I'll try a re-boot later to see if it kicks off the deluge.