All of the sudden a customer's XPanel (exe) stopped working. It won't connect. I can connect to the processor through toolbox just fine, but it won't connect through the XPanel. I have it set up in the XPanel to use the hostname (xxx.dyndns.org) and I can connect to the processor that way too. Anything I'm probably missing? It definitely WAS working as of a week ago when I left. Customer can't even connect when I have him change the IP in the Xpanel EXE from the hostname (dyndns) to the local IP address.

Any Ideas?