You must follow the manual, and use a computer on the same subnet as the printer. This must be done because the Wellfleet router listens on port 67 for BootP requests, and the Laserwriter 16/600 PS printer sends out a BootP request using port 68. This is a broadcast message, so the printer sends out a broadcast message to address 255.255.255.255, this is also called a limited broadcast address, any datagram which is destined for the limited broadcast address is never forwarded by a router under any circumstance. It only occurs on a local physical cable.