Wireless Networking: How to perform a PING test - macOS
Use the PING command to test the connection between the printer and computer. If there is no response then it could be a problem with the network settings on the printer. If there is a response then the problem could be caused by a computer setting problem (e.g. the printer port, or firewall settings)
|  Tip: | 
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| Make a note of the printer's IP address on the network status sheet. This will be used to test the communication between the printer and computer using the PING command. | 
macOS
You can use a Ping command to make sure the computer is connected to the printer. Follow the steps below to check the connection using a Ping command.
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                    Check the printer's IP address for the connection that you want to check. 
 You can check this from the Network Status screen on the printer's control panel, a connection report, or the IP Address column of a network status sheet.
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                    Run Network Utility. 
 Enter "Network Utility" in Spotlight.
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                    Click the Ping tab, enter the IP address that you checked in step 1, and then click Ping. 
   
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                    Check the communication status. 
 If the printer and the computer are communicating, the following message is displayed.
   
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                    If the printer and the computer are not communicating, the following message is displayed 
   
Mac OS X
 Apple menu, select System Preferences.
Apple menu, select System Preferences. 
                         
                         
                         
                         
                             in the top left of the box.
 in the top left of the box. 
                         
                         
                         
                                    