Canon MX490 series Online Manual page 586

The wireless channel to be used may be limited depending on wireless network devices installed in the
computer. Refer to the instruction manual provided with your computer or your wireless network device to
specify the valid wireless channel.
Make sure that the channel confirmed in Check 8 can communicate with the
Check9
computer.
If not, change the channel set to the wireless router.
Make sure that the firewall of the security software is disabled.
Check10
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 machine and computer to the LAN side
Check11
(same network segment).
When the machine is connected to an AirPort Base Station via a LAN, use
Check12
alphanumeric characters for the name of the network (SSID).
If the problem is not resolved, perform setup again according to the instructions on our website.
• For placement:
Make sure that there is no barrier or obstacle between the wireless router and the machine.
Cannot Communicate with the Machine while It Is in the Access Point
Mode
Make sure that the machine is turned on.
Check1
Is Change LAN in LAN settings under Device settings set to LAN inactive
Check2
or Wireless LAN?
Select Access point mode.
Have you selected the machine as the destination of your external
Check3
communication devices (e.g. computers, smartphones, or tablets)?
Select the access point name (SSID) of the machine with your external communication devices.
Have you entered the proper password specified for the access point mode?
Check4
If the security setting of the access point mode is enabled, you need to enter the password to connect your
external communication device to the machine. Confirm the specified password, then enter the proper one.
586