Canon : PIXMA Manuals : Changing the Settings in the Wireless LAN Sheet

To change the wireless network settings of the printer, connect the printer and the computer with a USB cable temporarily. If you modify the wireless network settings of the computer over wireless connection without USB connection, your computer may not be able to communicate with the machine after modifying the settings.

Note

This screen is not available depending on the printer you are using.
Activate the wireless LAN setting of the printer to change the settings in the Wireless LAN sheet.

Start up IJ Network Tool.

Starting up IJ Network Tool
Select the printer in Printers:.

When the printer is connected to the computer with a USB cable temporarily, select the printer with USB appearing in the Connected to column.
Click the Configuration... button.
Click the Wireless LAN button.
Change the settings or confirm.

Click OK after changing configuration. A screen is displayed asking you for confirmation before the settings are sent to the printer. If you click OK, the settings are sent to the printer and the Transmitted Settings screen is displayed.
1. Network Type:
  
  AirPort Network (Infra)
  
  Connects the printer to the wireless LAN with an access point.
2. Network (SSID):
  
  The network name (SSID) of the wireless LAN is displayed.
  Note
  Enter the same SSID that the access point is configured to use. The SSID is case-sensitive.
3. Search...
  
  The Access Points screen is displayed to select an access point to connect to.
  
  Access Points Screen
  Note
  When IJ Network Tool runs over a LAN, the button is grayed out and cannot be selected. Connect the printer and the computer with a USB cable temporarily to change the settings.
4. Encryption Method:
  
  Select the encryption method used over the wireless LAN.
  Important
  If all encryption types of the access point, printer, or computer do not match, the printer cannot communicate with the computer. If the printer cannot communicate with the computer after the encryption type of the printer was switched, make sure that encryption types for the computer and the access point matches that set to the printer.
  
  If you connect to a network that is not protected with security measures, there is a risk of disclosing data such as your personal information to a third party.
  Do Not Use
  
  Select to disable encryption.
  
  Use Password (WEP)
  
  Transmission is encrypted using a WEP key you specified.
  
  If a network password (WEP) has not been set, the WEP Details screen is displayed automatically. To change WEP settings set before, click Configuration... to display the screen.
  
  Changing the WEP Detailed Settings
  
  Use WPA/Use WPA2
  
  Transmission is encrypted using a network key you specified.
  
  The security has been strengthened more than WEP.
  
  If a network key has not been set, the Authentication Type Confirmation screen is displayed automatically. To change network key settings before, click Configuration... to display the WPA Details screen or WPA2 Details screen.
  
  Changing the WPA or WPA2 Detailed Settings
5. Configuration...
  
  The detailed settings screen is displayed. The network password (WEP) or the WPA/WPA2 key selected in Encryption Method: can be confirmed and changed.
  
  For details on WEP setting:
  
  Changing the WEP Detailed Settings
  
  For details on WPA or WPA2 setting:
  
  Changing the WPA or WPA2 Detailed Settings
6. TCP/IP Setting:
  
  Sets the IP address of the printer to be used over the LAN. Set a value appropriate for your network environment.
  
  Get IP address automatically
  
  Select this option to use an IP address automatically assigned by a DHCP server. DHCP server functionality must be enabled on your wireless LAN router or access point.
  
  Use following IP address
  
  If no DHCP server functionality is available in your setup where you use the printer or you want to use a particular IP address, select this option to use a fixed IP address.

Access Points Screen
1. Detected Access Points:
  
  The signal strength from the access point, encryption type, name of access point, and the radio channel can be confirmed.
  Important
  If you connect to a network that is not protected with security measures, there is a risk of disclosing data such as your personal information to a third party.
  Note
  Signal strength is displayed as follows.
  
  : Good
  
  : Fair
  
  : Poor
  
  Type of encryption is displayed as follows.
  
  Blank: No encryption
  
  WEP: WEP is set
  
  WPA: WPA is set
  
  WPA2: WPA2 is set
2. Refresh
  
  Click to update the list of access points when your target access point is not detected.
  
  If the target access point is set to a closed network (the stealth mode), click Cancel to return to the previous screen and enter the network name (SSID) in Network (SSID).
  Note
  Make sure that the access point is turned on.
3. Set
  
  Click to set the network name (SSID) in Network (SSID): on the Wireless LAN sheet.
  Note
  The WEP Details screen, the WPA Details screen, or the WPA2 Details screen appears if the selected access point is encrypted. In this case, configure the details to use the same encryption settings set to the access point.
  
  Access points that cannot be used by this machine (including those configured to use different encryption methods) are displayed grayed out and cannot be configured.

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