Make sure that the network settings of the computer are correct.
Make sure that the computer can communicate with the wireless router over the wireless LAN.
Make sure that the firewall of the security software is disabled.
If the firewall function of your security software is turned on, a message may appear warning that Canon
software is attempting to access the network. If the warning message appears, set the security software to
always allow access.
If using any programs that switch the network environment, check their settings. Some programs will enable a
firewall by default.
When using a router, connect the printer and computer to the LAN side (same
When the printer is connected to an AirPort Base Station via a LAN, use
alphanumeric characters for the name of the network (SSID).
Confirm the TCP/IP setting of the printer and disable IPv6.
To check the current TCP/IP setting, print out the network setting information.
Printing Out Network Setting Information
When "TCP/IP Version" is set to "IPv4 & IPv6", both IPv4 and IPv6 are enabled.
Press and hold the RESUME/CANCEL button, then release the button when the POWER lamp flashes 17 times.
IPv6 is disabled and only IPv4 is enabled.
If the problem is not resolved, perform setup again according to the instructions on our website.