Canon PIXMA G620 Printer User Manual
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Make sure that the wireless channel number on the wireless router is included in the wireless channel number
you checked. If the wireless channel number set for the wireless router is not included, change the wireless
channel number of the wireless router.
Check5
In case of Wi-Fi connection, check if computer that can be accessed by
wireless router is restricted.
The wireless router settings may be limiting the number of devices that can be connected at the same time.
Remove or relax the restrictions.
To check the settings of the wireless router, refer to the instruction manual provided with it or contact its
manufacturer.
Note
• To check the MAC address or IP address of your computer, see
Checking Computer IP Address or MAC
Check6
If problem occurs only when wireless router is in energy-saving mode, turn off
energy-saving mode of wireless router.
Sudden problems include the need to update wireless router's firmware (key update interval, many of the
DHCP update interval matching problems). For details, refer to the wireless router's instruction manual.
Check7
If printer is connected to AirPort Base Station via LAN, make sure you use
alphanumeric characters for network name (SSID). (macOS)
Important
• If "There is a problem in the settings/environment" is listed, check item "2-2 Result Codes" and take
•
action according to the listed code.
C-4 : There is a problem in the settings/environment
No default gateway is set.
When you set the IP address of the printer manually, enter a valid default gateway IP address. If you don't
know the default gateway, set the IP address to automatic.
C-7 : There is a problem in the settings/environment
There may be a problem with the signal.
Check the following items.
Check
Monitor signal status and move printer and wireless router as necessary.
• Monitor the signal status and move the printer and the 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.
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