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Actual Behaviour:
pihole FTL stops resolving DNS requests for unknown reasons - sometimes after some hours, sometimes after a few seconds. I cannot see anything in the logs. I tried to update to the latest development branch, without success. After restarting DNS resolver using 'pihole restartdns' or 'service pihole.FTL restart', it works again, but after some time it stops to resolve DNS requests again.
'pihole -t' shows the following output when the issue occurs:
root@raspi1:/home/pi# pihole -t
[i] Press Ctrl-C to exit
11:27:00: forwarded 71.178.168.192.in-addr.arpa to 192.168.178.1
11:27:00: reply 192.168.178.71 is kasa71-hs100.fritz.box
11:27:00: reply 192.168.178.71 is HS100.fritz.box
11:27:00: query[PTR] 5.6.6.0.8.c.e.c.0.b.f.8.4.f.1.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.f.ip6.arpa from 127.0.0.1
11:27:00: config fd00::21f4:8fb0:cec8:665 is NXDOMAIN
11:27:00: query[PTR] c.5.e.1.3.e.d.3.1.7.f.2.5.5.8.c.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.f.ip6.arpa from 127.0.0.1
11:27:00: config fd00::c855:2f71:3de3:1e5c is NXDOMAIN
11:27:00: query[PTR] 1.3.0.5.5.e.5.7.3.8.d.8.9.8.4.5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.f.ip6.arpa from 127.0.0.1
11:27:00: config fd00::5489:8d83:75e5:5031 is NXDOMAIN
11:27:01: query[A] login.microsoftonline.com from fd00::c855:2f71:3de3:1e5c
That's it, no more output and noting happens on the log. When I restart FTL service from a different shell, log continues for some time, before it again stops on a query line.
Expected Behaviour:
pihole.FTL should work without interruptions 