Originally Posted by kc

Common problems

My NPC leaves my server after it joins
Your script is forcing the NPC to login, or you have an anti-cheat / ping kicker that is interfering with your NPC. You can add...
... as the first line of any callbacks that bots will use, e.g. OnPlayerRequestClass or OnPlayerRequestSpawn. For an efficient, simple way of excluding NPCs from loops, check out foreach by ******.

My NPC doesn't join my server at all
This is most likely caused by your server being passworded.

I can't get the npc_record filterscript to load
You either don't have the filterscript, or it is already loaded. Try continuing anyway.

My NPC just stands at the spawnpoint
Go back, and re-do the OnPlayerSpawn part of the tutorial.

My NPCs used to connect, but now I have upgraded to >= RC5 they don't.
There is a new maxnpc server.cfg variable that defaults to 0. add...
...to your server.cfg to fix this issue.