A Network Connection error displays upon creating a profile even after performing a memory wipe out. The issue is persistent when using a Native Auth Proxy set-up.
Related apps can still continue with a workaround of using the proxy settings from the "App Framework Configuration" settings. Perform the following steps:
Disable or clear the "Use printer's proxy settings" option.
After running the app using a framework configuration, enable the "Use printer's proxy settings" again.
If the issue persists, contact the next level of support for further diagnosis.
Follow the steps in this article on how to troubleshoot a communication failure issue on a Lexmark printer.
This article serves as a guide to gathering necessary information before opening an escalation item for network connectivity issues.