HP Enterprise printers - HP Connection Inspector (white paper)

5
Self-Healing Mode
The device initiates a system restart when one of the following conditions is met:
• The number of DNS Protected Mode events exceeds the “Number of DNS Protected Mode Events” setting
• The total DNS Protected Mode duration exceeds the “Cumulative DNS Protected Mode Duration” setting
• When a system restart remediation event is initiated, the device will automatically reboot unless the Auto-recover
feature is disabled, or a possible network anomaly occurs twice within 30 minutes, the device reboots and holds at
the preboot menu to prevent a potential malware exploit from executing.
Error and Status Messages
Event log Messages
This message indicate that the product detected and recovered from a network anomaly self-healing event.
Event log error code and message
Cause
Recommended action
33.05.31 Network Anomaly Detected
The printer detected and recovered
from a corrupted potential network
anomaly.
The number of protected mode
events has exceeded the Number of
Times in Protected Mode setting.
The total time in protected mode has
exceeded the Cumulative Protected
Mode Duration setting
Review the syslog messages for the
domain request triggering a system
reset. Determine if this domain
should be added to the whitelist.
Note: If the Auto-recover feature is disabled, or a possible network anomaly occurs twice within 30 minutes, the device
reboots and holds at the preboot menu to prevent a potential malware exploit from executing.
Control Panel Messages
A security alert message is shown on the control panel before a system reset self-recovery event.