Useful network troubleshooting reference
https://support.microsoft.com/en-us/help/325487/advanced-network-adapter-troubleshooting-for-windows-workstations
and it's gone. "Sorry page not found. 404." Microsoft WHY do you do this? I'll just have to start copying out this stuff and posting it whole instead of using links.
Fortunately some one scraped it so its here
