FTL failed to start due to failed to create listening socket for port 53: Address already in use

[suresh]

I know this topic has been discussed lot of times here but i am not an expert so looking for next steps without kiling my pi4.
Upgraded to pi v11.1 today and after reboot FTL stopped working.

Expected Behaviour:

Expected to see pihole back up and running after the upgrade
v11.1
Pi400

Actual Behaviour:

FTL fails to start, port 53 is already in use.

Debug Token:

https://tricorder.pi-hole.net/3OCH9EIl/

should i just do sudo kill -15 440 ? and restart FTL?

[jfb]

@suresh

should i just do sudo kill -15 440 ? and restart FTL?

You will also need to prevent connmand from starting in the future, or you will have the same problem on the next reboot.

[suresh]

found these steps on reddit, seem to work fine for now.

finding the connman service file
sudo grep -Ril "connman" /etc/systemd/

changing connman start file /etc/systemd/system/multi-user.target.wants/connman.service

change from

ExecStart=/usr/sbin/connmand -n

to

ExecStart=/usr/sbin/connmand -n --nodnsproxy

reload config changes

systemctl daemon-reload

restart connman to free up port 53

systemctl restart connman.service

restart pihole-FTL
systemctl restart pihole-FTL.service