Remote connecting problem

[Jim]

Trying to connect remotely to a Linux FC10 box from a FC8 using NX.
NX works without any problems to other Servers.  Just this one.
The box I 'm trying to connect to is a FC10/KDE box, that is connected 
to Comcast.net through a
Arris TM6020G/CT Modem and below is the error message that I get from NX.
 From what I can see in error message it is connecting, but it is having 
handshaking problem with the FC10 box.
Error message below.
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: Chris-Computer
URL: <http://listman.redhat.com/archives/fedora-list/attachments/20081201/ea23bd1d/attachment-0001.ksh>