Strange Connectivity and Quality Test Results

[aleksander-tatskiy]

We are using the opentok-network-test-js "@opentok/client": "^2.16.1", "opentok-network-test-js": "^2.0.2"

Each time the test shows different and unpredictable results that do not correspond to real network connection speed. For example, any speed test from the internet (https://www.speedtest.net for example) shows Download speed > 300 Mbps and Upload speed > 500 Mbps, but at the same time opentok-network-test-js or https://tokbox.com/developer/tools/precall/ shows errors like 'Video or Audio Unsupported, bandwidth too low'. As a result, the test becomes a failed which is not true. Сommunicating with Opentok support was useless Tested from Australia, USA, Canada and Russia

[AleksandrLeontev]

Yes, the same for me. Can someone have an explanation for this?

[rhainer]

Your connection quality is a function of many factors and not just available bandwidth. Other things that can impact your results are the CPU capacity of the end point device, distance, latency, and routing to the OpenTok media server from your end point, and devices in your local network that can add latency or interfere with media traffic. It can sometimes be helpful to use the Inspector tool to analyze the session. You can generate a session from your own application or use the "Save this data as simple text" in the Precall tool to see the sessionID that was used for the test.

[aaronpinch]

How can I test for these things? What data can I provide that might help solve this? I am also experiencing this.

This morning I have gotten a variety of results including unsupported, poor, good, + excellent. I have gotten these inconsistent results on a variety of hardware on both my local network, and on mobile 4g. I have continuous network analytics I can share for my local network if helpful; I do not have this for mobile.

Could you please review? I am having customers complain that the quality of calls is unusable, while they can use other tools without problems

Your connection quality is a function of many factors and not just available bandwidth. Other things that can impact your results are the CPU capacity of the end point device, distance, latency, and routing to the OpenTok media server from your end point, and devices in your local network that can add latency or interfere with media traffic.

[Mark5labs]

Same problem. I have iMac 2017 on i7 CPU, it can't be too slow for fast internet connection, because I can watch youtube in 4K without any problem, also speedtest.net shows speed near 250mbps download and 550mbps upload. No apps except browser and IDE, cpu/ram/network is not busy at all. And what I can see in precall test? Video Quality: 3.6 / 4.5 (Good) Supported Resolution: 1280x720 @ 30 fps 0% video packet loss Video Bitrate: 1000 kbps Also tested on mobile with different provider on 4G, seen the same results. Fast speed on speedtest, file downloads and any app, but slow on precall test. Maybe this is problem with opentok's server speed? Because on absolutely stable system sometimes I get even worse precall results.

[enricop89]

https://github.com/opentok/opentok-network-test#frequently-asked-questions-faq

[cmoran-vt]

Seems like I get "bandwidth too low" if I fail to make enough noise/move around in the camera frame while the test runs. Could this be caused by client-side encoding stuff, like the bitrate being cut down if there isn't much data to send?

[toshniakshay]

I am also facing this issue where network tests are failing abnormally and I have good internet speed on my device.. is there something related to hardware or operating system as I am facing this issue continuously on MI devices and whereas on one plus it is working fine even in low bandwidth.