DavidZuts...it WORKED!!
I did exactly as you said. Doing a cold reset also resets the JetDirect card if it's installed.
The complete instructions are here (from HP's site):
Thank you so much for this solution. I had already ordered a 620n but I guess I can sell it on ebay...
Thank you so very much (and you too DoubleHH) for your help!
Hope this helps someone else.
Tanger