Hello,
after prolonged use with smaller bitrates, I have now switched to larger and have found that my speed is insufficient.
I have my Vero 4k + connected to a Fritzbox 7590th
The data storage is Synology DiskStation 418j.
After several searches in the forum and with my poor English knowledge I tried different things.
I also did the iperf test.
root@DiskStation418j:~# iperf -c 192.168.178.2
------------------------------------------------------------
Client connecting to 192.168.178.2, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.178.66 port 55682 connected with 192.168.178.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 1.07 GBytes 919 Mbits/sec
192.168.178.66 is my Synology DiskStation
192.168.178.2 is my PC
then I tested my vero 4k +
osmc@osmc:~$ iperf -c 192.168.178.66
------------------------------------------------------------
Client connecting to 192.168.178.66, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.178.7 port 45247 connected with 192.168.178.66 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 29.2 MBytes 24.5 Mbits/sec
osmc@osmc:~$ iperf -R -c 192.168.178.66
------------------------------------------------------------
Client connecting to 192.168.178.66, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.178.7 port 45250 connected with 192.168.178.66 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 38.9 MBytes 32.6 Mbits/sec
192.168.178.7 is my Vero 4k +
my vero 4k + is connected with Lan cable.
My advancedsettings.xml is with
My 1080p Movie with 60 FPS and a bitrate 31469 kBit/s is play fine
my 1440p Movie with 25 FPS and a bitrate 60019 kBit/s don´t play (buffering too long)
I use the NFS Mount.
my 2160p Movie with 65000 kBit/s play fine with my old USB 2.0 Stick.
My order number was #19637
iperf3 does not run on the ds418j with realtek 1293 processor. because docker I can not use synonymous. The operating system is not a complete Linux. That’s how I read. I hope you understand the translation. The rest I will test again tonight. I wrote the support with a different email address. … n8 @ googlem …
Could this be a duplex mismatch?
As @dillthedog noted – the issue seems to occur in both directions. We’ve never experienced this before and only the TX direction would be expected to be impacted if there was a hardware issue
My Netgear ist set to Auto. The port speed is set automatically after the switch determines the speed using autonegotiation with the linked device. This is the default setting.
I have
FritzBox is set to LAN 1 with 1 Gbit/s
The Netgear is set to standard settings.
My Synology is set to 1000 MBit/s, Vollduplex, MTU 1500
I have already replaced the Netgear GS108EV3. I had the Netgear GS108EV2 on it before. I also replaced the cables
osmc@osmc:~$ ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: external
Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
Current message level: 0x0000003d (61)
drv link timer ifdown ifup
Link detected: yes
My Synology
root@DiskStation418j:~# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: d
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes
What a duplex mismatch is I understood but can not find a mistake.
The same problem I have when connecting to my second Diskstation.
root@DiskStation213j:~# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Link detected: yes
The ethtool results look fine and the network diagram suggests that there should be no loops.
It looks like the switches are managed (or semi-managed) , so it might be something in the configuration of the GS108EV3 that’s an issue.
You still haven’t provides the full logs or the iperf3 figures I requested. Having seen your network configuration, it would also be useful to see iperf3 figures (including reverse) between the Vero4K and Raspberry Pi3 that sits on the same switch. It seems that iperf3 is available on LibreELEC , though failing that, you could plug in an SD card containing OSMC or Raspbian on the Pi3.
Here is the Log of the Vero (I edited the advancesettings because my password was still there in plain text. therefore no connection to the database in the log)
There you have 2882 dropped RX packets on 25.8 MB. While better than the Vero4K’s figures. they’re also very bad. They also suggest that it’s probably not a bad cable on the Vero4K.
Conclusion: When the Vero4K was directly connected to the Fritzbox it gave over 900 Mbits/sec, so I’m inclined to think that there’s probably something incorrect on the switch – either with the configuration or hardware.
Are you always plugging the Vero into the same port when its connected to the second switch? If so what happens if you move it into a different port. It is not unheard of to have individual ports go bad on a managed switch.
Perhaps I don’t understand how this works but it would seem to me that telling Kodi to use three gigs of ram on a machine that only has two and also telling it to try to fill that buffer at ten times the bitrate of the playing video might lead to issues outside of the other parts of this conversation.
It might have changed in Kodi 18 but in Kodi 17 the “3-times memorysize” mentioned in the Kodi wiki is no longer correct.
Under Kodi 17, it would divide the memorysize into two halves and allocate 75% of the video cache to read-ahead caching. The other half would be used for audio caching, though will only allocate from RAM what it needs. So in this example, under Kodi 17 the read-ahead video cache would max out at around 375 MB.
So now I have the Vero attached directly to the FritzBox again. The connection tested with
FritzBox Lan2 > Vero 4k+
[3] 0.0-10.0 sec 1.09 GBytes 938 Mbits / sec
Video all play wonderfully.
Now I have only the unmanaged switch between the Fritzbox and the vero and then breaks the speed.
FritzBox Lan2 > TP Link unmanaged 5 Port > Vero 4k+
[0.0] 0.0-10.0 sec 17.8 MBytes 14.8 Mbits / sec
Can not be that here is always the error in the switch. The cables are different every time.
FritzBox 7590 Lan 1 > Netgear GS108EV3 -> Synology Diskstation 418j
FritzBox 7590 Lan 2 > Vero 4K+
NetGear GS108V3 Port 1> Netgear GS108EV2 > PC
and the other slow
FritzBox 7590 Lan 1 > Netgear GS108EV3 -> Synology Diskstation 418j
FritzBox 7590 Lan 2 > TP Link 5 Port > Vero 4K+
NetGear GS108V3 Port 1> Netgear GS108EV2 > PC
