MAC Ban
From Pool's Closed Wiki
A MAC Ban is when a Moderator bans your MAC Address.
You will probably never get this type of ban, and I don't think MODs use this type of ban anymore.
If you think you may have this type of ban, make sure you have tried every single other type of Ban to make sure you don't have this type.
To get rid of this type of ban, you must change your MAC Address.
To change your MAC address go download this program [1]. If you can't figure out how to use it please GTFO my interwebs.
Here is a serial to register the program with: SMC2U-00C8-4001-0100-F71F-8C4D