Epson WF-C5890 Series

Cannot Access the Printer after
Conguring
IEEE802.1X
The settings of IEEE802.1X are incorrect.
Disable IEEE802.1X and Wi-Fi from the printer’s control panel. Connect the printer and a computer, and then
congure IEEE802.1X again.
Related Information
& “
Conguring
an IEEE802.1X Network” on page 473
Problems on Using a Digital Certicate
Cannot Import a CA-signed Certicate
CA-signed Certicate and the information on the CSR do not match.
If the CA-signed Certicate and CSR do not have the same information, the CSR cannot be imported. Check the
following:
❏ Are you trying to import the
certicate
to a device that does not have the same information?
Check the information of the CSR and then import the
certicate
to a device that has the same information.
❏ Did you overwrite the CSR saved into the printer aer sending the CSR to a certicate authority?
Obtain the CA-signed certicate again with the CSR.
CA-signed Certicate is more than 5KB.
You cannot import a CA-signed Certicate that is more than 5KB.
The password for importing the certicate is incorrect.
Enter the correct password. If you forget the password, you cannot import the certicate. Re-obtain the CA-signed
Certicate.
Related Information
& “Importing a CA-signed Certicate” on page 455
Cannot Update a Self-Signed
Certicate
The Common Name has not been entered.
Common Name must be entered.
Unsupported characters have been entered to Common Name.
Enter between 1 and 128 characters of either IPv4, IPv6, host name, or FQDN format in ASCII (0x20-0x7E).
A comma or space is included in the common name.
If a comma is entered, the Common Name is divided at that point. If only a space is entered before or
aer
a
comma, an error occurs.
Administrator Information > Network Security Settings > Network Security Issues
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