求教CS 1.5 server的问题！

sail

我服务器用的okgogogo的1。5的世纪珍藏版，现在把CD更新到了4。29。0并且改了liblist。可是一有用户进去就说  CMD上就提示说，用户就被disenable了！
请教一下为什么啊？怎么解决啊？我怀疑是CD的问题！
CDMOD: Player id #1 "talang" did not authenticate with Steam.
CDMOD: Player id #1 "talang" did not validate - disconnecting player.
CDMOD: Player id #1 "talang" disconnected