blacklisting

[X-Ray_Dog]

Hey I know how to blacklist people from my own individual servers, but it doesn't seem to be working right. I added my ip address first, then later tried a range and got onto another computer, but I was still able to get into my servers. I wrote it to my server blacklist file and the servers acknowledged it and said that no errors occurred. I even tried restarting the servers but no luck. I also went onto a different network that i also range banned as a test but still, I was allowed back on. Any tips on how to fix this for actually banning people come time? All help appreciated!

edit:
Sorry, I just Realized I put this in the wrong forum...