Hi Kevin,
After going thru the steps you described, I am led to the conclusion that my computer is not recognizing the 455 on my network, as there is no MAC/Gateway corresponding to the AD listed on the label on the back of the JetDirect box. Could it be that my router is blocking this? I would connect the Jet Direct straight to my computer, except that I no longer have a crossover cable, which I think is required for a direct connection. Any thoughts before I go get a new one of those? Do you know of a comparable utility in OS9.1 which allows the lookup of IP addresses on a network?
Thanks.