error: bind: address already in use

[Qinn]

Hi there I sometimes get this error on a reboot, is there anyway of checking what is using the port during setup?

error in the system log:

Jun 21 14:02:35 pfSense php-fpm[340]: /rc.newwanip: The command '/usr/local/sbin/unbound -c /var/unbound/unbound.conf' returned exit code '1', the output was '[1561118555] unbound[84244:0] error: bind: address already in use [1561118555] unbound[84244:0] fatal error: could not open ports' 

I have checked right after the reboot with

sockstat | grep 53

but nothing is using 53?

[KOM]

What about 853, the TLS port? Are you doing SSL/TLS DNS?

[Qinn]

I appreciate the suggestion, but that one is not enabled in the resolver.