Im having a problem now with my openvas, everytime I scan Windows Server OS I got this error No Best matching OS identified. Please see the NVT ‘Unknown OS and Service Banner Reporting’ (OID: 1.3.6.1.4.1.25623.1.0.108441) for possible ways to identify this OS.
It looks like it dont detect its a WS And I dont know why, I already check and the feed is updated.