[zell12]

Yes, this is true. To solve this (If they have a cable modem or such) just place their ip address in the ipbanned.txt which is in the levels folder.

Note: All servers that give out rw levels should make it:
rw levels/*.graal
rw levels/*.nw

This way it will prevent such things like people adding *.*.*.* to the file like what happened on Enigma.