xyplex maxserver help

hello!

I'm trying to set up the conserver software with a xyplex maxserver 1800
terminal server.

I can connect to the terminal server using serial cable, and I have been
able to define an ip address and ping it.
But when I try to access it with telnet, the terminal server crashes, 
Requesting dumping server ...

Does anyone have the same problem with xyplex terminal servers?

best regards

Paulo Coelho