Rick
Good morning. I hope that htis is helpful for you. I saw that you were connecting the communications cable to your server. I have done this before on various machines and usually had good success. I have also had failure in using the serial port as a communications device. In those instance I had to use a workstation or laptop to communicate with the switch/router/printserver or whatever it was that i was trying to configure. I wonder if this is the issue with your APC controller. I believe that the port I was trying to use had a assignment from a previous software and I did not know about it.
It is evident that you are using the APC FAQ titled "Network Management Card Password Reset Procedure" and it has been not so good. Did you try the second procedure and hold the button down for 5-7 seconds and then again to cause the Status LED to go off as step 5 says? Just trying to be through.
"5.) Press the Reset button. Wait 5-7 seconds and the Status LED will flash rapidly while alternating between orange and green. Press the Reset button a second time immediately while the LED is rapidly flashing - which will cause the LED to then go off - in order to reset the User Name and Password to their defaults temporarily (the default User Name and password are both apc). "
Please advise on the above. Hope that this helps.