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Printer Cannot Be Used After Replacing Wireless Router or Changed Router Settings

When you replace a wireless router, redo the network setup for the printer according to the replaced one.

Refer to Setup Guide to setup.

Note

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/WPA3 key or a password, make sure encryption key for computer, network device, and printer matches key set for wireless router.

    The length or format of the Wi-Fi password and authentication method must be identical among the wireless router, the printer, and your computer.

    For details, see Setting an Encryption Key.

    Note

    • Some printers support IEEE802.1X/EAP (WPA/WPA2/WPA3 Enterprise). To configure IEEE802.1X/EAP (WPA/WPA2/WPA3 Enterprise), you also need to configure the authentication (Radius) server.

      Contact the network administrator for more information.

    • This web page contains information about several models. Depending on the specifications of the printer you are using, some of the features described (scanner/copy, etc.) may not apply.

      For details about the functions of your printer, see Specifications.

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

If the printer cannot communicate with the computer after you change the encryption type for the wireless router, make sure the encryption type and passkey or password for the computer matches that of the wireless router.