I was getting ready to post a similar question. I loaded the agent on a Windows 7 64-bit system as a network sensor and am getting the same thing. I've opened a case with Solarwinds support and their first response is that Windows 7 is not a supported OS, referencing the following document at http://www.solarwinds.com/documentation/en/flarehelp/npm/#orionagentrequirements.htm where it states:
Supported operating systems:
- Windows Server 2008, 64-bit
- Windows Server 2008 R2, 64-bit
- Windows Server 2012, 64-bit
- Windows Server 2012 R2, 64-bit
Notes:
- Agents are not officially supported on workstation operating systems.
- Agents run as a Windows service
- Agent communication to the Orion Server uses FIPS compatible encryption
However, the Network Sensor requirements documented in the Solarwinds Packet Analysis Sensor Deployment Guide located at http://www.solarwinds.com/documentation/Orion/docs/SolarWindsPacketAnalysisSensorDeploymentGuide.pdf state the following on page 4 for system requirements:
Windows 7 64-bit or later
Windows Server 2008 64-bit or later
Note: 32-bit operating systems are not supported.
I'd like clarification from a PM on which of these statements is actually accurate, and if it's the former, then I'd definitely recommend correcting the documentation in the PDF deployment guide. If it does take a server OS to run a remote network sensor agent then I'm afraid I won't be deploying these in my environment as server OS licensing is much more expensive than desktop OS.