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If filtering MAC addresses or IP addresses at wireless router, check that MAC
Check2
addresses or IP addresses for computer, network device, and printer are registered.
If using WPA/WPA2 key or a password, make sure encryption key for
Check3
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
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.
Cannot Communicate with Printer After Enabling MAC/IP Address Filtering or Encryption Key on
Wireless Router
Key.
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