I'm running NTA from July and sometimes netflow service stops randomly. It needs more often to start it manually from Orion Services Manager or from server's management/services option. I mean the service started automatically 1 or 2 times only during last 3 months. It happens 1-3 times a week but not every day.
The only one regularity I found was that service stopped more often during (or just after) database maintenance than other time.
Orion runs on MS Server 2008R2, NetPerfMon database runs on MS SQL 2005/MS Server 2003 SP2
Modules: SolarWinds Orion Core 2010.1.0 SP1, APM 3.5, NPM 10.0.0 SP1, NTA 3.7
Any suggestions about the reason?