请教：cvs [login aborted]: Error reading from server 192.168.0.18: -1

我在用wincvs登录时出现如下错误:

cvs -z9 -d :pserver:zjp@192.168.0.18:d:/CVSHome login
Logging in to :pserver:zjp@192.168.0.18:2401d:/CVSHome
cvs [login aborted]: Error reading from server 192.168.0.18: -1

***** CVS exited normally with code 1 *****

帮帮忙！！！！1