[FS#253] Multicast over wireless ceases to work properly after a while on ath9k with many clients connected

[LEDE Bugs]

The following task has a new comment added:

FS#253 - Multicast over wireless ceases to work properly after a while on ath9k with many clients connected
User who did this - Linus Lüssing (T-X)

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Thanks Michael, looking forward to it :-).

Two more questions popped into my mind: Does that network somehow involve multiple routers?

(I noticed that Felix's patch disabled both multicast_snooping and multicast_querier. If only reenabling igmp_snooping (= multicast snooping of the bridge) changes something for you then this could mean that there is another IGMP/MLD Querier somewhere, maybe another OpenWRT router or an enterprise switch?)

Second question: While a specific client stays connected, are the issues temporary (like 2-5min.) or permanent (> 10min.) for that client?
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=253#comment1520