ActiveState Community

I'm running Tcl 8.4 (with Except) and testing a script that telnets to my router. When I telnet directly using the Microsoft client everything works fine. But when i 'spawn telnet $ipaddr' inside the script and do expect "Username: ", it seems to hang for a minute and a window pops up with the message "Tchsh encountered unexpected problem and would like to close". Any help would be appreciated. Thanks in advance.