I really don't want to sound or look dumb as well make you look dumb.
But could you check your ban function?
Make sure you are banning the player\plr and not yourself?
I doubt this is the issue but it's worth a shot, Sometimes we goof up in a build.
This is vital to be honest with ARSEnic.
Obviously this isn't the issue but it's worth checking
As far as the ip issue, never heard of it.. Never port forwarded locally to encounter,