In case your USG/ZyWall/ATP/VPN/USGFLEX or any other professional firewall or router is crashing, please upgrade to the latest firmware version and collect console logs via the following procedure:
Disclaimer! This article offers a general overview of the series and may not apply uniformly to every model, software/firmware version. Prior to purchasing or using the device, please consult the model/version-specific documentation or reach out to technical support for accurate information.
Upgrade the firmware
- Upgrade the firmware to the latest known firmware
- Please also check our weekly firmware build. It's possible, that your issue was already fixed in it
- If you failed to install updates on your firewall, check out this article:
If the update did not help, please use the console cable to collect console logs for further investigation by tech support.
Connect to the console
Connect to the console port of the USG using terminal software (in this case, we are using Putty)
Once you are in the CLI, use the following command to enhance the logging output:
Router> debug kernel console-level 8
Send the console logs to the Zyxel Support Team for analysis if the device still reboots and you clearly see messages about this in the logs.