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● Replacement of the toner cartridge is r
ecommended.
How to Replace Toner Cartridges(P. 603)
Check the authentication settings.
The authentication method set on the machine does not match the authentication method set on the
RADIUS server.
● Check
that the same authentication method is set on this machine and the RADIUS server, and set the
correct authentication method.
Conguring IEEE 802.1X Authentication
(P. 429)
Could not connect. Check the PSK settings.
The network key (PSK) of a wireless router to be connected is not set to the machine correctly.
● Check the network k
ey (PSK) of the wireless router, and set it to the machine again.
Checking the SSID and Network Key(P. 333)
Setting Up Connection by Selecting a Wireless Router(P. 326)
Setting Up Connection by Specifying Detailed Settings(P. 329)
● If
the problem persists even after checking the network key, check whether the machine is properly
installed and ready to connect to the network.
Installation/Settings Problems(P. 566)
Could not connect using Access Point Mode.
Connection in Access Point Mode failed due to an error.
● W
ait a few moments and try again. If you still cannot connect, try switching the machine off briey.
Make Direct Connection (Access Point Mode) (MF249dw / MF247dw)(P. 291)
Could not connect using the wireless LAN. Turn the main power OFF and ON,
then congur
e the settings again.
A connection failed due to an error while setting wireless LAN connection.
● Restart the machine and set again.
● If
the problem persists even after restarting the machine, check whether the machine is properly installed
and ready to connect to the network.
Installation/Settings Problems(P. 566)
● If
the problem persists even after checking the wireless LAN connection, check the security settings of the
wireless router.
Troubleshooting
552
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