Cannot Communicate With the Machine/Cannot Print from the Machine

Check 1: Confirm the access point setting.

Refer to the instruction manual provided with the access point or contact its manufacturer to confirm the access point setting. Make sure that the computer and the access point can communicate with each other under this setting.

Check 2: If you are performing MAC address filtering or IP address filtering at the access point, confirm that the MAC address or IP address for both the computer or the network device and the printer are registered.

Check 3: If you are using a WEP/WPA/WPA2 key, make sure that the key for the computer or the network device and the printer matches that set to the access point.

Besides the WEP key itself, the key length, key format, the key ID to use, and the authentication method must match among the machine, the access point, and the computer.

Normally, select Auto for the authentication method. If you want to specify the method manually, select Open System or Shared Key according to the setting of the access point.

How to Set a WEP/WPA/WPA2 Key

Check 1: Make sure that the SSID/network name of the target access point and the machine are identical.

For the procedures to connect an access point and set it up, refer to the instruction manual of your access point or contact its manufacturer.

For the procedures to set up the printer, see Changing the Settings in the Wireless LAN Sheet.

Check 2: Make sure that Wireless LAN active is selected for Change wireless/wired under LAN settings on the operation panel.

LAN settings

Check 3: If a network key is set to the access point, set the machine to match it.

How to Set a WEP/WPA/WPA2 Key

Check 4: Make sure that the valid wireless channel is used.

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.

Check 5: Make sure that the channel set to the access point is valid to communicate with the computer, confirmed in Check 4.

If not, change the channel set to the access point.

For placement:

Make sure that there is no barrier or obstacle between the access point and the machine.

When using the printer in a multiple access point setup, make sure that the access point to be used can communicate with the machine and the computer.

Make sure that the wireless channel of the access point is far enough away with those of other access points.

Windows XP may automatically connect to an unintended access point. Follow the steps below to make your access point the highest priority.

Check 1: Make sure that the machine is turned on.

Check 2: Make sure that the USB cable is connected properly.

See Connecting the Machine to the Computer using a USB Cable to connect the USB cable properly.

Check 3: Do not start up IJ Network Tool while printing.

Check 4: Do not print while IJ Network Tool is running.

Check 5: Make sure that Enable bidirectional support is selected in the Ports sheet of the properties dialog box of the printer driver.

How to Open the Printer Driver Setup Window

Check 1: Make sure that the machine is turned on.

Check 2: Is Change wireless/wired or WLAN active/inactive in LAN settings set to Disable LAN?

LAN settings

Check 3: Make sure that the network settings in the machine 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 4: 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 5: Make sure that there is no obstruction.

Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices.

Check 6: 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 7: Make sure that the network settings of the computer are correct.

For the procedures to connect a network device to the computer and set them up, refer to the instruction manual of your network device or contact its manufacturer.

Check 8: Make sure that the radio status is good and adjust the installation positions while monitoring the radio status with IJ Network Tool.

Monitoring Wireless Network Status

Check 9: Make sure that the valid wireless channel is used.

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.

Check 10: Make sure that the channel set to the access point is valid to communicate with the computer, confirmed in Check 9.

If not, change the channel set to the access point.

Check 11: 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.

Check 12: When using a router, connect the printer and computer to the LAN side (same network segment).

For placement:

Make sure that there is no barrier or obstacle between the access point and the machine.

Check 1: Make sure that the machine is turned on.

Check 2: Is Change wireless/wired in LAN settings set to Disable LAN?

LAN settings

Check 3: Make sure that the LAN cable is connected properly.

Make sure that the machine is connected to the router with the LAN cable. If the LAN cable is loose, connect the cable properly.

If the LAN cable is connected to the WAN side of the router, the cable is connected to the LAN side of the router.

Check 1: Make sure that the machine is turned on.

Check 2: Is Change wireless/wired or WLAN active/inactive in LAN settings set to Disable LAN?

LAN settings

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 Connecting the Machine to the Computer using a USB Cable.

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: When searching for a printer over a network, make sure that the machine is associated with the port driver.

When No Driver is displayed under Name in IJ Network Tool, there is no association. Select Associate Port on the Settings menu, then associate the port with the printer.

When the Printer Driver Is Not Associated with a Port

Check 7: 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 8: Make sure that there is no obstruction.

Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices.

Check 9: 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 10: 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 11: 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.

Check 12: Make sure that Enable bidirectional support is selected in the Ports sheet of the properties dialog box of the printer driver.

How to Open the Printer Driver Setup Window

Check 13: 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.

Check 14: When using a router, connect the printer and computer to the LAN side (same network segment).

Check 1: Make sure that the machine is turned on.

Check 2: Is Change wireless/wired in LAN settings set to Disable LAN?

LAN settings

Check 3: Make sure that the LAN cable is connected properly.

Make sure that the machine is connected to the router with the LAN cable. If the LAN cable is loose, connect the cable properly.

If the LAN cable is connected to the WAN side of the router, the cable is connected to the LAN side of the router.