You might want to double check and see if "Wireless" is selected as the primary connection mode.
Also, is the IP address set as a static or is it using DHCP? It may be having a conflict with another device even if working.
Select a Primary Network (Ethernet or Wi-Fi)
We recently got a Phaser 6510 for our warehouse. The printer is working fine. We have it hooked up via the wireless connection. The problem is that it has been saying IP Address Failed ever since we first turned it on. I am sure that it has something to do with the ethernet port. How to I make this message go away?? There really is no reason for it to show that message, when it was initially hooked up via USB (we had to wait for our IT guy to get back into town to get it set up wirelessly). If anyone has any ideas, your input will be greatly appreciated. Thanks in advance.