Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
12,114 questions
windows defender network inspection cpu usage
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keepcalm-9173
1
Reputation point
i have a server with both crowdstrike falcon sensor installed and windows defender real-time protection running. This has been the situation for months and is how all our servers are running without issue. However over the last few days i have 1 server which is running at 100% CPU, and looking at the server its the "windows defender av network inspection service" nissrv.exe. If i disable and enable real-time protection, then it comes back and behaves as expected for a random amount of time then it starts using CPU again.
ive looked and cant find any logs that are telling me what its doing so im a bit lost with being able to troubleshoot it, i dont want to just turn it off because i feel there could be an underlying threat/issue that i just dont have any visibility of.
Is there any troubleshooting that i can do to get to the root cause?