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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA upgrade error: SolarWinds.NetFlow.Licensor has stopped working

NTA upgrade error: SolarWinds.NetFlow.Licensor has stopped working

Updated March 23, 2017


This article provides brief information and steps to resolve the following error when upgrading NTA:

SolarWinds.NetFlow.Licensor has stopped working





All NTA versions


The issue is caused by missing DLLs and config files from the \SolarWinds\Orion\NTA folder:

Example of files that were identified as missing:

  • SolarWinds.Licensing.Framework.dll
  • SolarWinds.Licensing.Framework.dll.config

This can be caused by running the upgrade as Domain Administrator rather than a Local Administrator.


  1. Create a Local Administrator account.
  2. Log in as a Local Administrator.
  3. Uninstall NTA then re-install NTA.
  4. Complete the Configuration Wizard.


Last modified
20:34, 22 Mar 2017