Canon PIXMA MG4200 Series On-Screen Manual page 504

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> The Machine Cannot Be Detected in the Wireless LAN
U057
The Machine Cannot Be Detected in the Wireless LAN
Check 1: Make sure that the machine is turned on.
Check 2: Is WLAN active/inactive in LAN settings set to Disable LAN?
Check 3: Make sure that the USB cable is connected properly.
When the machine is connected to the computer temporarily using a USB cable to change the wireless
LAN settings, connect the machine and the computer securely seeing
Computer Using a USB
Check 4: Make sure that the machine setup is completed.
If not, setup with the Setup CD-ROM.
Check 5: When using IJ Network Tool, click Update to search for the
printer again.
Canon IJ Network Tool Screen
Check 6: Make sure that the network settings in the printer are identical
with those of the access point.
Refer to the instruction manual provided with the access point or contact its manufacturer to check the
access point settings, and then modify the machine settings.
How to Set a WEP/WPA/WPA2 Key
Check 7: Make sure that there is no obstruction.
Wireless communication between different rooms or floors is generally poor. Adjust the location of the
devices.
Check 8: Make sure that the machine is not place as far away from the
access point.
The access point is located indoors within the effective range for wireless communication. Locate the
machine within 164 ft. / 50 m from the access point.
Check 9: Make sure that there is no source of radio wave interference
in your vicinity.
There may be a device such as a microwave oven using the same frequency bandwidth as the
wireless station. Place the wireless devices as far away from the interference source as possible.
Check 10: Make sure that the network settings of the computer are
correct.
Make sure that the computer can communicate with the printer and the access point over the wireless
LAN.
Cable.
> Cannot Detect a Machine on a Network
Connecting the Machine to the