Mine are doing this too. It seems like every 10 seconds they look up themselves, then in the interval, they look up their neighbours.
Without blocking stuff at the router, I can't tell if they are trying anyone else's DNS (e.g. that DoH security nightmare)
Over about 15 hours:
AP11D 1,2,3 and AP12 did about 22000 lookups each, about 5500 of each neighbour (and self)
A quick fiddle suggests that this represents a doubling of PTR queries.
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Still can't change my name from FL17!
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Original Message:
Sent: 11-05-2021 03:32 AM
From: Dave TB
Subject: AP12's perfroming tens of thousands PTR lookups a day after 2.4.0 update
Greetings,
I'm a new Instant On user, about 2 months now. I have 1930 Switch and 5 AP12s (only ones offered locally where I am). Two days ago the APs update to Version 2.4.0 and since then my DNS flooded with PTR lookups from each of APs attempting reverse lookups of the other APs and only the other APs. Each AP is performing about 65,000 xxx.xxx.xxx.xxxin-addr.arpa PTR requests a day the reverse IPs are the other APs.
This was not happening before for the update to 2.4.0, is anyone seeing this activity, or does anyone have any suggestions on how to stop it?
Thanks much
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Dave TB
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