I've had a user contact me that he is IP banned.
He never visited the forum before, and I told him to visit whatismyip.com and give me the big number on the screen.
But the IP that he gave me is not in my IP ban list, I also checked the phpbb ip bans in the database, just in case. And it's also not visible there. Any idea what else I could do? Can I whitelist his IP somehow?
He showed me this: