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CPU usage typically varies between 1% and 3%. It should not consume more CPU than that under normal conditions. In the event of a massive attack, it may exceed this threshold while mitigating it. During the first 72 hours, the system is learning and detecting the behavior of active services. This creates temporary microsecond CPU spikes. If CPU usage exceeds 95% of resources due to the operating system or other applications, the service will pause for 3 minutes and then resume analysis from the point it paused, recovering that 3-minute gap.
You can temporarily and globally disable following these steps or uninstall it quickly following these steps.
There should be no error, but to rule it out, try disabling the IIS module and wait 2 minutes or restart the web service.
If it continues the same, you can uninstall the IIS module from the command line:
FlexFirewallSetup /uninstallModuleNative && iisreset
If it continues the same, you can rule out that Flex Manager is the cause of the error. You can reinstall the module from the command line:
FlexFirewallSetup /installModuleNative