Quote from Raptor2213:
That'd be because you didn't buy it. The free version only supports up to 8 players: http://www.mcmyadmin.com/Editions.aspx
Or if you did buy it - stop the server and
comment out the setting in the McMyAdmin.conf
Change the maxplayers in the server.properties to the value you'd like to have:
Now start the server.
Btw Phonic - this is another "small" bug - the software sometimes sets back the slots to 8 players. No logical reason behind it - but fixing it with the above does work.
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