Administrator's Guide

• If DHCP is out of date, or the IPv6 address is out of date or was not obtained, you may not be able to

find the IP address registered in Web Config.

• If that does not solve the problem, enter a static IP address using Web Config.

Parent topic: Solving Network Security Problems

Cannot Create the Secure IPP Printing Port

If you cannot create the secure IPP printing port, try these solutions:

• Make sure you specified the correct server certificate for SSL/TLS communication using Web Config.

• If you are using a CA certificate, make sure it is imported to the computer that is accessing the printer.

Parent topic: Solving Network Security Problems

Cannot Access the Product After Configuring IEEE802.1X

If you cannot access the product after configuring it for IEEE802.1X, disable IEEE802.1X and Wi-Fi

using the product control panel. Then connect the product and a computer, and configure IEEE802.1X

using Web Config again.

Parent topic: Solving Network Security Problems

Solving Digital Certificate Problems

Check these sections if you have problems using a digital certificate.

Digital Certificate Warning Messages

Cannot Import a Digital Certificate

Cannot Update a Certificate or Create a CSR

Deleted a CA-signed Certificate

Parent topic: Solving Problems

Digital Certificate Warning Messages

If you see a warning message when using a digital certificate, check for solutions in this table.

Message Solution

Enter a Server Certificate. Select a certificate file and click Import.

CA Certificate 1 is not entered. Import CA certificate 1 before importing additional

certificates.