Client bandwidth test to set auto-quality // Mod: default remote streams to auto-quality

[pshanew]

Also, there’s this feature suggestion to add a client/server speed test:

[request] - support user client/server based diagnostics/speed test

While troubleshooting remote playback issues, it would be great if plex provided some kind of speed test directly between the plex client and plex server, so that it can easily be identified if there is some kind of internet/connection/bandwidth based issue going on that is causing problems with playback. This is really important on mobile networks that may be actively blocking/restricting plex based domains, or just restricting general traffic, while ‘white listing’ ‘speed test’ to make it loo…

You may want to add your vote over there as well.