To find the IP address on a Mac OS X computer:
1.Open the Network control panel.
2.Select Airport in the Show
If the computer and the printer are not on the same subnet, move the printer to the same subnet as the computer, and then run the setup wizard again.
1 
The computer and the printer are on different subnets.
2 
The computer and the printer are on the same subnets.
The computer cannot find the printer after you remove the network cable
Check the Wireless Status light on the front of the printer. If the Wireless Status light is not illuminated, the printer wireless radio is not active.
Verify that the network cable has been removed from the printer. The printer cannot communicate over a wireless connection if the network cable is connected to the printer Ethernet port.
Check the Network light
Check the Network light on the front of the printer. If the Network light is not illuminated, the printer is not connected to the network.
Try the following solutions:
●Check the Signal Strength
Network Guide | 15 |