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Connect the computer or smart device to the same SSID as the printer.
A privacy separator on the wireless router is available.
Solutions
Most wireless routers have a separator function that blocks communication between devices within the
same SSID. If you cannot communicate between the printer and the computer or smart device even if
they are connected to the same network, disable the separator function on the wireless router. See the
manual provided with the wireless router for details.
The IP address is incorrectly assigned.
Solutions
If the IP address assigned to the printer is 169.254.XXX.XXX, and the subnet mask is 255.255.0.0, the IP
address may not be assigned correctly.
Settings > General Settings > Network Settings > Advanced > TCP/IP on the printer’s control panel,
and then check the IP address and the subnet mask assigned to the printer.
Restart the wireless router or reset the network settings for the printer.
If the printer network settings are incorrect,
recongure
the printer network settings according to the
network environment.
& “Re-Setting the Network Connection” on page 124
There is a problem with the network settings on the computer.
Solutions
Try accessing any website from your computer to make sure that your computer's network settings are
correct. If you cannot access any website, there is a problem on the computer.
Check the network connection of the computer. See the documentation provided with the computer for
details.
The device connected to the USB 3.0 port causes radio frequency interference.
Solutions
When you connect a device to the USB 3.0 port on a Mac, radio frequency interference may occur. Try
the following if you cannot connect to wireless LAN (Wi-Fi) or if operations become unstable.
❏ Place the device that is connected to the USB 3.0 port further away from the computer.
❏ Connect to the SSID for the 5 GHz range.
& “Making Wi-Fi Settings by Entering the SSID and Password” on page 125
Solving Problems
>
The Printer Does Not Work as Expected
>
Cannot Print
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