I can’t register a trunk or extension, for a moment it registered but with the same configuration dont work anymore.
In the extension case, when it work i had to specify the server sip port on softphone configuration, example: myvitalpbx.com:5062 and if i don’t specify that says “authentication failed”.
At this moment i’m unable to register an extension, my softphone only says “no connected”.
Same thing with the trunk, i’m using the same setup that once worked.
It does not seem to be a problem of fail2ban service.