If you haven't restarted the server and you don't have the reload as part of the server config, then it will need to be reloaded as they are kept in memory and any temp bans would be lost everytime you overwrite your pbbans.dat and then reload, hence the merge
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I would recommend the following being in your config
PB_SV_AutoUpdBan 1 [0=no, 1=yes]
Set to 1 (defaults to 0) if you want PB to automatically update the permanent ban file (pbbans.dat) after each change to the banlist in memory
PB_SV_BanLoad [optional filename]
Loads a PB Ban List from the specified file; if no filename specified, then pbbans.dat is loaded
That is the reason why I merge the two, or you can alway save the PBBANS list to pbbans2.dat and set it to load both files, but I just merge only takes an extra minute and I keep any temp bans for spanwkilling etc.
And typical should have checked the evenbalance website before I posted the parameter first time :-), the pb_sv_banload is correct
regards Raist