Have you tried the ollowing: Solution : Make Sure the Printer Adheres to a Proper TCP/IP Scheme
Compare the TCP/IP address for the printer and the subnet or network mask to determine if a supernet is being attempted. A supernet, unlike a subnet, borrows bits from the Net ID instead of borrowing bits from the Host ID. For example, a Class C TCP/IP Address with a Class B subnet or network mask borrows bits from the Net ID to allow more Host ID's. Phaser printers strictly adhere to the TCP/IP Requests For Comments (RFC) and; therefore, recognizes this as an illegal TCP/IP scheme.
Example of supernetting: TCP/IP address of 220.127.116.11 with a Network mask of 255.255.0.0.
In the example above, the TCP/IP address is a Class C address, while the network mask is Class B. This is an illegal TCP/IP scheme according the to RFC and not supported by Phaser printers. Change the network mask to Class C to allow proper communication.
Our only suggestion is if you can try to set up your Phaser using the same TCP/IP address that the PC had when you tested it on the drop that is not working for the printer? In discussing this issue with our engineers, the cable and cable length that you are using is sufficient and therefore you should not have any connection issues in that regard. If you continue to have a connection issue, please contact Xerox Customer Support at 800.835.6100.
We are attempting to install Phaser 4510 in a room about 50 feet from our server room. We have connected the printer to a CAT6 line that was installed and tested by a licensed electrician. This line is routed to a multi-port switch attached to our router. We get connectivity to the router using this line with a computer, but plugging the Phaser 4510 into this line yields no connectivity. I can, however, carry the printer into the server room and plug it directly into the switch and it connects. Does anyone know if such a short run of CAT6 (about 50 to 60 feet) would adversely affect the connectivity of this printer?