Affected Products:
Single-Function: All Lexmark 2016 - 2017 SFPs
Multifunction: All Lexmark 2016 - 2017 MFPs
Solution:
Card Authentication v5.3.3

Issue Description:
When a networked printer is disconnected from the network, the IP address displayed on the printer lock screen does not change to 0.0.0.0.
NOTE:
From the printer home screen, when you swipe down notification then disconnect the printer from the network, the IP address displayed on the bottom-left corner of the notification is updated automatically.

Solution:
Pressing the Home button will update the printer lock screen display. It should then show 0.0.0.0 when a networked printer is removed from the network.

Still Need Help?
Have the following available when calling Lexmark Technical Support;
Printer model(s)
Printer serial number
Name and version of app or solution
LEGACY ID: SO8452