If the DHCP is out of date, rebooting or the IPv6 address is out of date or has not been obtained, then the IP
address registered for the printer's Web Config (
Network Security
tab >
IPsec/IP Filtering
>
Basic
>
Group
Policy
>
Remote Address(Host)
) may not be found.
Use a static IP address.
Related Information
&
“Accessing Web Config” on page 24
&
“Logging on to the Printer Using Web Config” on page 48
&
“Encrypted Communication Using IPsec/IP Filtering” on page 89
Cannot Create the Secure IPP Printing Port
The correct certificate is not 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.
The CA certificate is not 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
&
“Encrypted Communication Using IPsec/IP Filtering” on page 89
Cannot Connect After Configuring IPsec/IP Filtering
The settings of IPsec/IP Filtering are incorrect.
Disable IPsec/IP filtering from the printer’s control panel. Connect the printer and computer and make the
IPsec/IP Filtering settings again.
Related Information
&
“Encrypted Communication Using IPsec/IP Filtering” on page 89
Cannot Access the Printer or Scanner after Configuring 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
configure IEEE802.1X again.
Related Information
&
“Configuring an IEEE802.1X Network” on page 100
Administrator's Guide
Advanced Security Settings for Enterprise
105