[CiNcH]

I just set up a new QNAP NAS and tested the different protocols/file systems for network media playback via Kodi Leia nightly on Sony Android TV using 802.11ac Wi-Fi. I used the jellyfish samples to do so. While I could go all the way up to 120mbps via DLNA/UPnP and SMB (v2.1), NFS (v3) suffered from severe re-buffering above the 70mbps sample already. I would have expected NFS to perform better than SMB? Probably not so much on Android TV?

[Klojum]

The NFS protocol has less overhead, so should (in theory) be quicker. But as always, 'YMMV'.

120mbps = 15 MB/s .. Is not bad for a wireless connection, but
as a comparison, I get 110+ MB/s on a gigabit cable connection (on Intel hardware).

[CiNcH]

Sony ATV doesn't have Gbit Ethernet. Routing cables would have been a problem anyway... So my TV has a dedicated 80MHz channel in the 5GHz band which is totally free of disturbance (measured with a spectrum analyzer). I could achieve a stable 250mbps when transferring TCP data.

While playing the jellyfish samples, 140mbps caused some stuttering issues via DLNA and SMB. The sample played fine from USB. I might try increasing buffer sizes. The 120mbps sample played fine via DLNA and SMB.

NFS playback suffered from rebuffering above the 70mbps sample already.