Buffering issues with 4k File

i just did that and:64 bytes from seq=343 ttl=64 time=0.132 ms
64 bytes from seq=344 ttl=64 time=0.135 ms
— ping statistics —
345 packets transmitted, 345 packets received, 0% packet loss
round-trip min/avg/max = 0.103/0.210/0.535 ms
osmc@osmc:~$ iperf3 -s

Server listening on 5201

iperf -c

nothing… so weird

I think you are mixing things up.
You need to start the client in a second terminal on the MAC.

Thanks I am gonna do it tomorrow here is late. Thanks for the quick reply. Listen I did these upgrade from this thread ( Playback improvements for 4K HEVC UHD content) but my system was already update on the latest firmware. Do I need to reverse back or is it ok how it is?

You can stay on that version just remove the devel line from sources.list so that you receive the stable version during next month update

140Mbps Jellyfish will play back from local storage.
It may struggle over the network, but fortunately this bitrate well exceeds the UHD BD spec.

just for report

osmc@osmc:~$ iperf -R -c

Client connecting to, TCP port 5001
TCP window size: 85.0 KByte (default)

[ 3] local port 38351 connected with port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.1 sec 115 MBytes 96.2 Mbits/sec

Vero4k has a good 100Mbit ethernet (router and cable are gigabit ready) and enought for any standard 4k video