Below is a list of potential steps to investigate why you may be unable to stream a video or music:

1. Check your internet connection – verify that your internet is running and free of any irregularities that may be causing issues with streaming.
2. Check your hardware – make sure that all your streaming-related hardware is working and connected properly.
3. Verify you have the proper software – double check that the application you are streaming from is compatible with your system and is up-to-date.
4. Check for any network issues – investigate if there are any issues in your network that might be causing issues with streaming.
5. Try an alternate streaming service – if the issue persists using the previous steps, try using a different streaming application or source.