I forget exactly when this problem occurred -- think it was during Field Day that I first noticed it -- connecting to any cluster in the N1MM+ Telnet results in an error message. Command line "telnet dxc.w9pa.net 7373" responds as it should but connecting via N1MM+ Telnet window fails. It used to work so I turned off firewall, anti-virus, etc. briefly but that does not fix the problem. These guys have the same problem (though I'm using a Kenwood and not a Flex). Any ideas?