The WLAN (Wi-Fi) is not enabled.

Check the following points and try to set up your wireless connection again:

• Enable the WLAN setting on your machine.
• If a network cable is connected to your machine, disconnect it.

The wireless router/access point cannot be detected.

Check the following points and try to set up your wireless connection again:

• Make sure the wireless router/access point is on.
• Temporarily place your machine closer to the wireless router/access point when you are configuring the wireless settings.
• If your wireless router/access point is using MAC address filtering, confirm that the MAC address of the machine is allowed in the filter. You can find the MAC address by printing the Network Configuration Report.
• If you manually entered the Network Name (SSID) and security information (authentication method/encryption method), the information may be incorrect. Check the Network Name and security information again and re-enter the correct information.
• Restart your wireless router/access point. If you cannot find the Network Name (SSID) and security information, see the documentation provided with your wireless router/access point, or contact the router manufacturer, your system administrator, or Internet service provider.

The wireless enterprise network and security settings you entered may be incorrect.

Check the following points and try to set up your wireless connection again:

• Verify the following information:

  • Network Name (SSID) you selected to configure your machine.
  • Security information you selected to configure your machine (such as the authentication method, encryption method, or User ID).

If you still cannot find the Network Name (SSID) and security information, see the documentation provided with your wireless router/access point, or contact the router manufacturer, your system administrator, or Internet service provider.

Your machine does not support the authentication and encryption methods used by the selected wireless router/access point.

For infrastructure mode (Most common)

Change the authentication and encryption methods of the wireless router/access point. Your machine supports the following authentication and encryption methods:

• WPA-Personal:

  TKIP / AES

• WPA2-Personal:

  TKIP / AES

• WPA3-Personal:

  AES

• OPEN:

  WEP / NONE (without encryption)

• Shared key:

  WEP

If your issue is not solved, the Network Name (SSID) or security settings you entered may be incorrect. Check that all wireless network settings are correct for your network.

The Network Name (SSID) and Network Key (Password) are incorrect.

Check the following points and try to set up your wireless connection again:

• Confirm the Network Name (SSID) and Network Key (Password).
• If your Network Key contains upper-case and lower-case letters, make sure you type them correctly.
• If you cannot find the Network Name (SSID) and security information, see the documentation provided with your wireless router/access point, or contact the router manufacturer, your system administrator, or Internet service provider.
• If your wireless router/access point uses WEP encryption with multiple WEP keys, write down and use only the first WEP key.

The wireless security information (authentication method/encryption method/Network Key (Password)) is incorrect.

Check the following points and try to set up your wireless connection again:

• Confirm the Network Key. If your Network Key contains upper-case and lower-case letters, make sure you type them correctly.
• Confirm whether the authentication method entered and the authentication method or encryption method supported by the wireless router/access point are the same.
• If the network key, authentication method, and encryption method have been confirmed, restart your wireless router/access point and the machine.
• If your wireless router/access point's Stealth Mode is on, you may need to disable it to connect to the wireless network.

If you cannot find the Network Name (SSID) and security information, see the documentation provided with your wireless router/access point, or contact the router manufacturer, your system administrator, or Internet service provider.

The machine cannot detect a wireless router/access point that has WPS (Wi-Fi Protected Setup) enabled.

Check the following points and try again:

• To check if your wireless router/access point supports WPS, look for the WPS symbol displayed on the router/access point. For more information, see the documentation provided with your wireless router/access point.
• To set up your wireless connection using WPS, you must configure both your machine and the wireless router/access point. For more information, see the user's guide.
• If you do not know how to set up your wireless router/access point using WPS, see the documentation provided with your wireless router/access point, or contact the router manufacturer, your system administrator, or Internet service provider.