Jim was telling you to use telnet (available on Windows) to see if you can get anything from port 22 on one or both of the AIX systems.

telnet your-host 22
Is stating to telnet to server "your-host" on port 22 (see the telnet man page on one of your AIX servers for more info). Just switch "your-host" with the name or IP of one of your AIX servers.