I have been a bit frustrated, over the past few days, trying to get my Epson 4880 printing from my wireless network. The "signal" path is MacPro 10.6 > AirPort Extreme > AirPort Express > 4880. The first problem may be cable type; connecting the AirPort to the 4880, do I use a "straight-through" or "cross-over" cable? In the printer set up do I use "Auto" for IP address or manual?
I have the same setup with a Epson 3800. I rember to find it tricky to set up but everthing works like a charm now. There might be other setups but here is mine:
If you have multiple devices connecting to your network and everything worked fine until now you don't have any problems with DHCP. Just leave it for the moment.
The most important thing with DHCP is that only one device does this job in a network or it can get messy. I have a ADSL router doing this job. Apple calls it "Connection Sharing: Distribute a range of IP addresses" in the Airport Utility. But again, only one device, please.
The Wireless Distributions Service
makes it possible to extend a wireless network with multiple wireless access points. You can choose between a main, a relay and a remote. In our setup you need a main (APX) and a remote (Airport Express - APE). Relay is only used to extend the system, useless for us. On the remote other device can connect by wireless or ethernet.
- Set the wireless mode of APX and APE to "Participate in a WDS network" (see attached jpg)
- Set the WDS mode of your APX to "WDS Main" and enter the AirportID of your APE as WDS Remotes (see jpg)
- Set the WDS mode of your APS to "WDS Remote" and enter the AirportID of your APX as WDS Main (see jpg)
Just remember to take your AirportIDs and not mine ;-) You find them on the main panel of your Airport Utility when choosing a device.
I can't remember changing anything on the printer side. It was set to DHCP and I use a regular ethernet cable, not crossed. It took some time and some on/off cycles until it picked up an IP address and showed up on my MacBook. Just test the configuration by adding a printer in the OS X printer panel. Your Epson should be available over Bonjour and/or IP.
Listen, it was a very tiring experience setting this up. So many pieces that might fail. But suddenly it worked and since then it never stopped working.
Get back to me if you have further question. I hope I can help.
Wish you luck ;-)