Cannot Create The Secure Ipp Printing Port; Cannot Access The Printer After Configuring Ieee802.1X; Problems On Using A Digital Certificate; Cannot Import A Ca-Signed Certificate - Epson printer Administrator's Manual

Administrator's Guide

Cannot Create the Secure IPP Printing Port

Is the correct certificate specified as the server certificate for SSL/TLS communication?
If the specified certificate is not correct, creating a port may fail. Make sure you are using the correct certificate.
Is a CA certificate imported to the computer accessing the printer?
If a CA certificate is not imported to the computer, creating a port may fail. Make sure a CA certificate is imported.
Related Information
"Configuring IPsec/IP Filtering" on page 18
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Cannot Access the Printer after Configuring IEEE802.1X

The settings may be incorrect.
Disable IEEE802.1X and Wi-Fi from the printer's control panel. Connect the printer and a computer, and then
configure IEEE802.1X again.
Related Information
"Configuring an IEEE802.1X Network" on page 27
&

Problems on Using a Digital Certificate

Cannot Import a CA-signed Certificate

Does the CA-signed certificate and the information on the CSR match?
If the CA-signed certificate and CSR do not have the same information, the CSR cannot be imported. Check the
following:
❏ Are you trying to import the certificate to a device that does not have the same information?
Check the information of the CSR and then import the certificate to a device that has the same information.
❏ Did you overwrite the CSR saved into the printer after sending the CSR to a certificate authority?
Obtain the CA-signed certificate again with the CSR.
Is the CA-signed certificate more than 5KB?
You cannot import a CA-signed certificate that is more than 5KB.
Is the password for importing the certificate correct?
If you forget the password, you cannot import the certificate.
Related Information
"Importing a CA-signed Certificate" on page 33
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Solving Problems
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