Hello,
I've noticed that I get the following messages repeating every minute (or even more often) in the Unbound log for a specific client:
2026-07-27T18:11:57-04:00 Notice unbound[87634:1] notice: remote address is <IPv6 address of client> port 54860
2026-07-27T18:11:57-04:00 Notice unbound[87634:1] notice: sendmsg failed: Invalid argument
That client doesn't have any connectivity issues, and works normally. None of my other ~35 clients have this behavior. Any ideas what is causing this, and what it means? When that client is offline, the log is silent.
Thanks all!