AWS MediaPackage live video preview not showing up

Question

Hi!
I followed this workflow 
```
https://aws.amazon.com/blogs/media/connecting-obs-studio-to-aws-media-services-in-the-cloud/
```
 to try to push live content to AWS MediaPackage. I followed all the instructions, and OBS is successfully connected to Medialive. However, when I open the preview page on MediaPackage, it just shows that cannot load the end point URL, with the error below:

```
`response code:0 This might be a CORS issue, consider installing Allow-Control-Allow-Origin Chrome Extension
1.308 | A network error occurred: manifestLoadError`
```

I then installed the Chrome Extension but the problem remains.
I don't know what went wrong as I follow the instruction step by step. Can someone help me with it? Thank you!

Answer

Greetings!

Thanks for your question. It appears the preview player provides the same error message in multiple scenarios. I was able to replicate your issue by creating a new MediaPackage channel and endpoint without pushing any content to it.

The first things to check are to make sure you've configured your MediaLive channel properly to connect to MediaPackage, using the drop-down to select the appropriate channel in the MediaPackage Output Group settings. Once your MediaLive channel is up and running, confirm in the Health tab of the channel console that there are no alerts present that might indicate an issue with the workflow, that could prevent the stream from reaching MediaPackage. It might also be helpful to enable logging in MediaLive, see https://docs.aws.amazon.com/medialive/latest/ug/monitoring-with-logs.html to set that up.
MediaPackage also offers operational metrics for the channel on its console, so confirming data is coming in there (and also pay attention to "Egress Request HTTP Status" to confirm the player is getting successful transfer requests).

If you have any questions about what you're seeing please follow-up here.

Regards,
Steve

AWS MediaPackage live video preview not showing up

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