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.
See the Setup Guide and perform setup.
Note
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Wi-Fi Connection Assistant allows you to diagnose and repair the network status.
Select the link below to download Wi-Fi Connection Assistant and install it.
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
- With Encryption On, Cannot Communicate with Printer After Changing Encryption Type at Wireless Router
Cannot Communicate with Printer After Enabling MAC/IP Address Filtering or Encryption Key on Wireless Router
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Check 1 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.
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Check 2 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.
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Check 3 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.
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.
