I've had my LaserJet 4000 with a 615N JetDirect for over 20 years now. Once upon a time, I was able to easily connect and print to it from a Mac or Windows machine. I'm not sure if it's something I changed, or something in the OS has changed, but the printer is no longer discoverable.
Setting up the printer was a effortless. You simply added a printer 🖨, the OS instantly recognized it, installed the drivers and offered to print a test page. Now, it no longer discoverable. I have to add it as a network printer, type in its assigned hard IP address and locate and install the drivers. If I use a hostname instead of an IP, the OS doesn't resolve it, but oddly enough, the router lists the printer and its hostname on its connected clients list.
I printed out the JetDirect configuration page to see what could be wrong and I noticed an error message:
IPX/SPX STATUS: 29 UNABLE TO SENSE NET NUMBER MODE: QUEUE SERVER NODE NAME: NPI768990 IPX/SPX RETRANS: 0 NETWORK FRAME TYPE RCVD UNKNOWN
Pardon the bad formatting, I am displaying it exactly as it appeared on the JetDirect Configuration Page.
What could possibly cause my printer to no longer broadcast its name? Could it have something to do with the IPX/SPX error? Could it be my router interfering with it?