Network Management

NTA NetFlow Receiver Service flow processing is suspended due to licensing issues. License status check failed: no valid license were found for OSS

NetFlow Receiver Service flow processing is suspended due to licensing issues. License status check failed: no valid license were found for OSS. You may find that the Netflow service is unable to start and immediately stops when trying to start the service again via the Orion Service Manager. When checking the Windows Event Viewer, you can find the following message types: X/X/XXXX X:XX AM/PM Event Type NetFlow Receiver Service flow processing is suspended due to licensing issues.

First published date

10/18/2018 3:23 PM

Last published date

12/22/2025 10:26 PM

Overview

You may find that the Netflow service is unable to start and immediately stops when trying to start the service again via the Orion Service Manager.

When checking the Windows Event Viewer, you can find the following message types:

X/X/XXXX X:XX AM/PM Event Type NetFlow Receiver Service flow processing is suspended due to licensing issues.
X/X/XXXX X:XX AM/PM Event Type License status check failed: no valid license were found for OSS.
X/X/XXXX X:XX AM/PM Event Type NetFlow Receiver Service [OSS] Stopped

You may also observe the error below from nta businesslayer logs:

ERROR SolarWinds.Netflow.Common.Licensing.Licensing - Unable to get license.
SolarWinds.Orion.Core.Common.ModuleLicenseException: License is expired or not available
   at SolarWinds.Orion.Core.Common.ModuleLicense.CheckLicense()
   at SolarWinds.Netflow.Common.Licensing.Licensing.GetModuleLicense(String applicationName, Version productVersion, String productVersionSpecification, Int32 licenseVersion)
   at SolarWinds.Netflow.Common.Licensing.Licensing.GetLicense()

Product section

Netflow Traffic Analyzer

Cause

This is caused by a corrupted license store on the NTA collector server (on either the Primary Polling Engine or an Additional Polling Engine).

Resolution

Deactivate / reset the NTA license
Reactive the NTA license
How to Start, Stop, or Restart SolarWinds Services with the SolarWinds Service Manager in the SolarWinds Platform

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