Canon G3411 Online Manual page 277

Usable wireless channels may be limited depending on wireless network device used by your computer. See
the instruction manual provided with your computer or wireless network device to check usable wireless
channels.
Make sure channel set on wireless router is a usable channel as confirmed in
Check8
Check 7.
If it is not, change the channel set on the wireless router.
Make sure security software's firewall is off.
Check9
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.
If the problem is not resolved, redo setup using the Setup CD-ROM or from the web page.
• Positioning:
Make sure there are no obstacles between the wireless router and the printer.
Cannot Communicate with Printer Using Wireless Direct
Check the power status of printer and other devices (smartphone or tablet).
Check1
Turn on the printer or devices.
If the power is already turned on, turn it off and on again.
Check printer settings.
Check2
Make sure the (Direct) icon is displayed on the LCD.
If not, press the Direct button for more than 2 seconds to enable Wireless Direct.
Check the settings of your device (smartphone/tablet).
Check3
Make sure wireless LAN is enabled on your device.
For details, refer to your device's instruction manual.
Make sure printer is selected as connection for device (e.g. smartphone or
Check4
tablet).
Select the identifier for Wireless Direct (SSID) specified for the printer as the connection destination for
devices.
Check the destination on your device.
For details, refer to your device's instruction manual or visit the manufacturer's website.
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