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Did you give both printers the same IP address? &nbsp;If so that is your problem.
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Did you give both printers the same IP address?  If so that is your problem.

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You could set them up for DHCP, just to make sure it's not a address conflict somewhere.
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You could set them up for DHCP, just to make sure it's not a address conflict somewhere.

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I have recently relocated an HP 9500hdn printer and added an HP 9500mfp. I cannot get either of them to connect to the network.<br />
The network details <br />
LAN IP: 192.168.178.21<br />
Gateway: 192.168.178.1<br />
MAC Addr 00:1D:7D:)!:06:C3<br />
Subnet Mask: 255.255.255.0<br />
I have attached a scan of the config page of the 9500mfp which shows amongst other things LOSS of CARRIER, I/O Card Not Ready I have a good connection through the LAN to my Internet connection and also good coms on my VoIP Phones.<br />
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<a href="https://filedb.experts-exchange.com/incoming/2012/08_w33/596156/9500mfp-config-page-001.jpg" target="_blank" title="ThThis a scan of what I think is the appropriate page of the Printer Config page for the 9500mfp, the same page for the 9500hdn is similar. (636 KB)"><img alt="ThThis a scan of what I think is the appropriate page of the Printer Config page for the 9500mfp, the same page for the 9500hdn is similar." class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2012/08_w33/800_596156/9500mfp-config-page-001.jpg" /></a>
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ThThis a scan of what I think is the appropriate page of the Printer Config page for the 9500mfp, the same page for the 9500hdn is similar.

9500mfp-config-page-001.jpg

I have recently relocated an HP 9500hdn printer and added an HP 9500mfp. I cannot get either of them to connect to the network.
The network details 
LAN IP: 192.168.178.21
Gateway: 192.168.178.1
MAC Addr 00:1D:7D:)!:06:C3
Subnet Mask: 255.255.255.0
I have attached a scan of the config page of the 9500mfp which shows amongst other things LOSS of CARRIER, I/O Card Not Ready I have a good connection through the LAN to my Internet connection and also good coms on my VoIP Phones.



LAN Printer Problems

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.