You can check the Mixer Service Health Dashboard to see if there are currently any known service issues.
Introduction: Viewer Issues vs. Broadcaster Issues
For a conceptual description of all that can go wrong between the broadcaster and the viewer of a stream on Mixer, please see the article on How streaming traffic is delivered. This end-to-end troubleshooting guide for issues viewing Mixer streams is logically arranged to focus on the viewer experiencing the issue, but the troubleshooting steps often involve coordination between the broadcaster, the viewer, and Mixer (and sometimes even your ISP) to resolve. For help resolving additional broadcaster issues please see End-to-End TSG: Issues Broadcasting Mixer Streams.
Viewer Issues: Problems watching a Mixer stream
- The broadcaster's encoder settings are set too high and their hardware can't handle it. The broadcaster may need to adjust their stream settings.
- The broadcaster's game or other software is capping out their CPU and not leaving enough resources for the encoder (xsplit/obs). A common symptom is buffering when action gets intense in an FPS. The broadcaster should try setting their encoder software's CPU Process Priority higher than the thing that's CPU-Hogging in Task Manager in Windows.
- There is a network problem between the broadcaster and the Mixer ingest server (all viewers of this stream suffer). The broadcaster may need to or change ingest servers.
- There is a network problem between the viewers and the Mixer distribution server (fewer viewers of this stream suffer). The viewer should find the distribution server by right clicking in the stream and then run an MTR or Traceroute to it to check for speed issues.
- The broadcaster's ISP, the viewer's ISP, or an ISP in the middle may be throttling Mixer traffic. The broadcaster or viewer can run an MTR or Traceroute to see where the traffic is slow.
- The viewer's settings are too high and their Internet bandwidth can't handle it. The viewer should adjust their settings to avoid buffering or view the stream at a lower bandwidth.
- The viewer's browser is having issues. The viewer should try clearing their browser cache, refreshing the page with CTRL + F5, updating their browser to the newest version, and testing from a different browser (note which Browsers work).
- There is a server side issue at Mixer.
You can check Mixer service health from: https://status.mixer.com/
Please let us know if a stream is broken.
- Stream never starts and the screen stays black.
- Stream starts, but then goes black.
- Stream starts, but then goes black and shows "NAN:NAN".
- Stream shows the blue buffering icon, and then the screen goes black.
- Stream gives "WebRTC not supported" errors.
(Please specify the exact symptom if you report an issue with the Mixer black screens.)
- FTL issues. The viewer can tell if the stream uses FTL by looking for the "low latency" toggle in the cog wheel menu of the video player.
- To watch Mixer FTL streams in "Low Latency" mode, you will need to use a browser that supports the "h264 video codec", such as the latest versions of Chrome, Firefox, or Edge (starting with the Windows 10 Creator Update). A WebRCT Test can also be used to help troubleshoot Low Latency issues.
How can I watch in 4K?
- In order to view a 4K stream you will need to watch via an Xbox One S connected to a 4K monitor or by using a 4K capable computer connected to a 4K monitor.
- We suggest a download speed of at least 20Mbps in order to view a 4K stream without issue. If you're experiencing issues, please check your local network speeds or try lowing the resolution.