Check4
Make sure the printer is not placed too far away from the wireless router.
If the distance between the printer and wireless router is too far, wireless communication becomes poor. Place
the printer and wireless router close to each other.
Check5
Make sure wireless signal is strong. Monitor signal strength and move printer
and wireless router as necessary.
Place the printer and wireless router where there are no obstacles between them. Wireless communication
between different rooms or floors is generally poor. Wireless communication can be impeded by building
materials containing metal or concrete. If the printer cannot communicate with the computer over a Wi-Fi due to
a wall, place the printer and the computer in the same room.
In addition, if a device like a microwave oven that emits radio waves of the same frequency bandwidth as a
wireless router is nearby, it may cause interference. Place the wireless router as far away from interference
sources as possible.
Check the signal strength on the LCD.
Indication of LCD
Check6
Make sure Enable bidirectional support is selected in the Ports sheet of the
Printer properties dialog box. (Windows)
If not, select it to enable bidirectional support.
Check7
Make sure security software's firewall is off.
If your security software's firewall is on, a message may appear warning you that Canon software is attempting
to access the network. If this warning message appears, set security software to always allow access.
If you are using any programs that switch between network environments, check their settings. Some programs
use a firewall by default.
Check8
If printer is connected to an AirPort Base Station via LAN, make sure you use
alphanumeric characters for network name (SSID). (macOS)
If the problem is not resolved, click here and redo setup.
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