Canon LBP7780CX, User Manual

Page: 917 / 1004

The printer and the authentication server use different IEEE802.1X authentication systems.
Solution
Change IEEE802.1X authentication systems.
"Setting IEEE802.1X Authentication"
IE No reply from the destination.
<Cause> During IEEE802.1X authentication, and error occurred while communicating with the
authentication server.
Solution Check to see if the cable is disconnected.
IE Set necessary authentication info.
<Cause> There is information missing from the IEEE802.1X authentication settings.
Solution
Check the IEEE802.1X settings, and reconfigure them.
"Setting IEEE802.1X Authentication"
IE Set the correct authentication info.
<Cause> An error was returned from the authentication server because the certificate used for
IEEE802.1X authentication is not correct.
Solution 1
The certificate used for TLS authentication is not correct. Check the certificate, and reconfigure it.
"Setting IEEE802.1X Authentication"
Solution 2 If the printer's certificate is correct, check the authentication server's CA certificate.
IE The certificate has expired.
<Cause> During IEEE802.1X authentication, the certificate received from the authentication server
was an expired certificate.
Solution 1 Check the authentication server's certificate.
Solution 2
Check the printer's and the authentication server's time settings.
"Turning the Power On and Specifying a Language"
IE The certificate is incorrect.
<Cause> During IEEE802.1X authentication, an error occurred as a result of the verification by the CA
certificate of the certificate received from the authentication server .
Solution 1 Check the authentication server's certificate.
Solution 2
Install the CA certificate in the printer.
"Security Settings"
NW Competing IP add. found on the network.
<Cause> The IPv4 address set for the printer overlaps with another host on the network.
Solution
Change the printer's IPv4 address and restart.
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