Very weak WiFi performance

Help and Support Vero 4K / Vero 4K +
1

Hi,

new Vero 4k+ owner here. Managed to finally set up the device this week. First impression is great, seems to be what I was looking for.

HOWEVER, during first tests I noticed dropout issues even on low-bitrate files. WiFi is 5Ghz only and my router confirms a 5 GHz / ac / 80 MHz connection to osmc. My 5+ year old media box - that the Vero is intended to replace - reliably plays full bluray backups from the exact same spot.

osmc@osmc:~$ iperf3 -R -c 192.168.178.36
Connecting to host 192.168.178.36, port 5201
Reverse mode, remote host 192.168.178.36 is sending
[  4] local 192.168.178.38 port 46815 connected to 192.168.178.36 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  6.79 MBytes  56.9 Mbits/sec
[  4]   1.00-2.00   sec  6.17 MBytes  51.8 Mbits/sec
[  4]   2.00-3.01   sec  6.80 MBytes  56.6 Mbits/sec
[  4]   3.01-4.00   sec  7.63 MBytes  64.4 Mbits/sec
[  4]   4.00-5.00   sec  7.01 MBytes  58.9 Mbits/sec
[  4]   5.00-6.00   sec  6.05 MBytes  50.7 Mbits/sec
[  4]   6.00-7.00   sec  4.84 MBytes  40.6 Mbits/sec
[  4]   7.00-8.00   sec  6.36 MBytes  53.3 Mbits/sec
[  4]   8.00-9.00   sec  6.57 MBytes  55.1 Mbits/sec
[  4]   9.00-10.00  sec  4.48 MBytes  37.6 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec  62.9 MBytes  52.7 Mbits/sec                  sender
[  4]   0.00-10.00  sec  62.8 MBytes  52.7 Mbits/sec                  receiver

iperf Done.

Did iperf3 test and as you can see, the result comes out well below the expected 60-140 MBit/s for 5GHz connections, as stated in your how-to. Different positions around the TV didn’t change the outcome. All this would just be numbers to me if I could play my files, but it won’t even play my less demanding material without buffering. Full disc images only play in super-slo-mo without sound.

Because I was curious I also repeated the iperf3 test on my smartphone (a 2 year old 200$ android) - achieving 141 Mbit/s. This validates the performance of my old media box and it’s not surprising, as the TV is only ~5m from the router. So I’m afraid to say this points directly to the Vero being the cause. Any advice? Thanks!

2

The bandwidth should be higher for 5Ghz.
Can you confirm that 2.4Ghz WiFi is completely disabled on your network or on an old SSID?

WiFi is influenced by environmental factors, so it may be hard to find an exact cause.

3

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Yes, 2.4GHz is definitely switched off (sorry, router interface in German, but this should be self-explanatory). Also, as stated before, I confirmed that the Vero has an 802.11ac connection.
The interesting thing here is that the router shows a higher data rate to the Vero than to both my old media box or my smartphone. So the Vero is able to negotiate a fast connection, it just doesn’t seem to be able to “use” it.

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4

Can you post a log from osmc?

Sam

5

One thing to take into account. Even though you have the WiFi at max speed, it just shows what it is capable in transfering (according to the handshake between both parties). But - if you have other devices connected to that same AP, that are slower and not that fast, the Ap will usually switch to the lowest common denominator working for all (when I had my kids watching stupid youtube videos on their old phones while I was doing some testing on WiFi, it was directly visible).
For a while I had a dedicated WiFi for Medias in my house, until I put Cat6 cables through all walls. Sionce then, no more issues with out Video Media-centers :smiley:

6

Have you tried changing channels on the router.
I read a lot of the time that 5Ghz wont be congested but I obviously have many tech savvy neighbours because I had to go through a lot of different channels until I perfected my 5Ghz network.