When I’m troubleshooting this type thing, the first tool I break out is iperf3.
Speedtest isn’t the right tool. Right idea but not the point-to-point we need.
How to do this:
-
Download and install the iperf3 server on the syno.
– Google search:iperf3 server synologyand you’ll get links to iperf, and docker, and the how-to’s on YouTube.
– Set it up to run on the Syno since this is the “home base” we’re interested in. -
On your android client, download the
iperf3 clientapp -
With iperf3 server running on the Syno, Open the iperf3 client
-
You’ll point to the IP address of the Syno.
-
There are two test sets to run : Forward (the default where you send to it) and Reverse (where DSM sends to you – which is what we’re most interested in)
If the client lets you run for more than 10 seconds, run it for 60 seconds so you get a good overview of streaming performance.
What you’re seeing here is the Point-to-Point pure wire speed from Android<->Syno.
If this isn’t cutting it, then we indeed have a networking (WiFi?) problem.
Let me know what you find.
… as example, (please ignore my home LAN – it’s 10Gbps)
Here’s stress testing it in Forward and Reverse modes
[chuck@lizum ~.1999]$ iperf3 -c 192.168.0.20 -t 20
Connecting to host 192.168.0.20, port 5201
[ 5] local 192.168.0.13 port 41342 connected to 192.168.0.20 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 1.09 GBytes 9.38 Gbits/sec 220 1.09 MBytes
[ 5] 1.00-2.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.35 MBytes
[ 5] 2.00-3.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.37 MBytes
[ 5] 3.00-4.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.38 MBytes
[ 5] 4.00-5.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.39 MBytes
[ 5] 5.00-6.00 sec 1.09 GBytes 9.38 Gbits/sec 116 831 KBytes
[ 5] 6.00-7.00 sec 1.09 GBytes 9.41 Gbits/sec 0 1.34 MBytes
[ 5] 7.00-8.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.37 MBytes
[ 5] 8.00-9.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.38 MBytes
[ 5] 9.00-10.00 sec 1.09 GBytes 9.40 Gbits/sec 617 718 KBytes
[ 5] 10.00-11.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.34 MBytes
[ 5] 11.00-12.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.38 MBytes
[ 5] 12.00-13.00 sec 1.09 GBytes 9.41 Gbits/sec 0 1.39 MBytes
[ 5] 13.00-14.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.39 MBytes
[ 5] 14.00-15.00 sec 1.09 GBytes 9.40 Gbits/sec 580 714 KBytes
[ 5] 15.00-16.00 sec 1.09 GBytes 9.38 Gbits/sec 133 962 KBytes
[ 5] 16.00-17.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.34 MBytes
[ 5] 17.00-18.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.38 MBytes
[ 5] 18.00-19.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.39 MBytes
[ 5] 19.00-20.00 sec 1.09 GBytes 9.39 Gbits/sec 642 716 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-20.00 sec 21.9 GBytes 9.41 Gbits/sec 2308 sender
[ 5] 0.00-20.04 sec 21.9 GBytes 9.39 Gbits/sec receiver
iperf Done.
[chuck@lizum ~.2000]$ iperf3 -c 192.168.0.20 -t 20 -R
Connecting to host 192.168.0.20, port 5201
Reverse mode, remote host 192.168.0.20 is sending
[ 5] local 192.168.0.13 port 46604 connected to 192.168.0.20 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 1.09 GBytes 9.40 Gbits/sec
[ 5] 1.00-2.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 2.00-3.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 3.00-4.00 sec 1.10 GBytes 9.42 Gbits/sec
[ 5] 4.00-5.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 5.00-6.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 6.00-7.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 7.00-8.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 8.00-9.00 sec 1.10 GBytes 9.42 Gbits/sec
[ 5] 9.00-10.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 10.00-11.00 sec 1.10 GBytes 9.42 Gbits/sec
[ 5] 11.00-12.00 sec 1.09 GBytes 9.40 Gbits/sec
[ 5] 12.00-13.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 13.00-14.00 sec 1.10 GBytes 9.42 Gbits/sec
[ 5] 14.00-15.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 15.00-16.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 16.00-17.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 17.00-18.00 sec 1.10 GBytes 9.41 Gbits/sec
[ 5] 18.00-19.00 sec 1.10 GBytes 9.42 Gbits/sec
[ 5] 19.00-20.00 sec 1.10 GBytes 9.41 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-20.04 sec 21.9 GBytes 9.39 Gbits/sec 1 sender
[ 5] 0.00-20.00 sec 21.9 GBytes 9.41 Gbits/sec receiver
iperf Done.
[chuck@lizum ~.2001]$
Testing my Wifi, with iPhone 11,
