2x NAS but only 1x NAS is being seen on Plex

[OttoKerner]

Authentication.
Tip #2 in particular:

How to add files on a NAS to a Plex library on Windows

If you have installed Plex Media Server on your Windows computer, you add shares on your NAS this way: Surf to the media on your NAS using the Windows file explorer: [UNC_path] click into the address bar of file explorer once and press CTRL+C to copy the so-called ‘UNC path’ into the Windows clipboard. Then switch into Plex Web and create a new library. (or edit an existing one) On the ‘Add Folder…’ tab, click on ‘Browse for Media Folder’ in the resulting window, delete everything from th…