I have found following:
Symptoms of known Issue
The Netflow.exe service (local FSDB) or SolarWinds.Netflow.Fastbit.Server.Service.exe (remote FSDB) keeps bouncing or stops.
This is caused by a corrupt –update.zip file.
If this file is 0KB it is corrupt.
Examples errors can be found in FastbitService.log
ERROR SolarWinds.Netflow.FastBit.Server.Service.FastBitService - Error while starting service.
ICSharpCode.SharpZipLib.SharpZipBaseException: Unexpected EOF
Resolution to this issue:
1. Go to the following directory ( default) C:\ProgramData\SolarWinds\NTA\FlowStorage\Data
2. Backup to desktop first and then delete the –update.zip file only, do NOT delete the _update folder
3. Start Netflow or Fastbit service.
I would recommend to upgrade NTA as this was fixed in NTA v4.0.1