[KWo]

Make sure Your server.cfg on Your HLDS (in the main cstrike or czero folder - depanding of the mod You are playing) contains the line:
rcon_password "mypassword"
Of course the string "mypassword" is the same string You have to also enter from Your client console PC to get the access by typing the same line:
rcon_password "mypassword"

I've just tested and it works at me, so please make sure You can change other settings on Your server by rcon access, then test it again with podbot mm settings.