All I can find is a video for setting up in F5. Are there written detailed instructions anywhere?
This is all I can locate.
https://support.solarwinds.com/Success_Center/Network_Performance_Monitor_(NPM)/Network_Insight_for_F5%C2%AE_BIG-IP%C2%AE__-_Video
Try this page look at the bottom for the printed links I have included one here as well.
Network Insight for F5 BIG-IP load balancers - SolarWinds Worldwide, LLC. Help and Support
Set up Network Insight for F5 BIG-IP load balancers - SolarWinds Worldwide, LLC. Help and Support
Was / is the admin guide you got when you downloaded your software or on the portal - useful ?