It also started banning Integra SIP switch, as well. Very randomly, as well. What the heck is going on???
I don't see it under intrusion detection ("Banned IP's No Banned IP's"), but I do see it in fail2ban.log.
Also, under intrusion detection, I have it in the whitelist there, as well as in ignore ip in the jail.conf file. In addition, it's an IP that is allowed in iptables chain.
I have piaf servers that aren't doing this, it seems it's only the freepbx distro that this is happening to (as far as I can tell).