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Printer Cannot Be Used After Replacing Wireless Router or Changing Its Settings

When you replace a wireless router, redo the network setup for the printer.

  • For Windows:

    Use the Setup CD-ROM or follow the instructions on the Canon website.

  • For Mac OS:

    Follow the instructions on the Canon website.

If this does not solve the problem, see below.

Cannot Communicate with Printer After Enabling MAC/IP Address Filtering or Encryption Key on Wireless Router

  1. Check1 Check wireless router setting.

    To check the wireless router setting, see the instruction manual provided with the wireless router or contact its manufacturer. Make sure the computer and the wireless router can communicate with each other under this setting.

  2. Check2 If filtering MAC addresses or IP addresses at wireless router, check that MAC addresses or IP addresses for computer, network device, and printer are registered.

  3. Check3 If using WPA/WPA2 or WEP key, make sure encryption key for computer, network device, and printer matches key set for wireless router.

    In WEP setting, the WEP key, key length, key format, the key to use, and authentication method must be consistent among the wireless router, printer, and computer.

    For details, see Setting an Encryption Key.

With Encryption On, Cannot Communicate with Printer After Changing Encryption Type at Wireless Router

If you change the encryption type for the printer and it subsequently cannot communicate with the computer, make sure the encryption type for the computer and the wireless router matches the type set for the printer.