I don't remember if the programming software asks for your password before or after it attempts to connect. So it's possible that you're not actually connected. IIRC you should either get a bad password message or a successfully connected message, so I'm guessing your PC isn't really talking to the ACS, so your cable/DB9 adapter is likely the culprit.

If you don't have a 355AF adapter handy here's the pinout:

DB9 to RJ45 Pinout

rj-45
PIN 1 ORANGE 2 CD
PIN 2 GREEN 5 RD
PIN 3 YELLOW 6 TD
PIN 4 BLACK 3 DTR
PIN 5 RED 4 SG
PIN 6 BROWN 7 DSR
PIN 7 WHITE 8 RTS
PIN 8 CTS
PIN 9 BLUE 1