You've confirmed that your internet connection is up to speed and your viewing device/method is compatible and set up properly, but still can't get the video to load or play? Here are some additional steps you can take to get the issue resolved:
1. Clear out your browser's cache/history
Go into your internet browser's settings and delete the cache, browsing history, and cookies. After you've done this, refresh your page.
2. Try a different browser
If you've cleared out your browser's cache/history/cookies as mentioned above but are still running into issues, try using a different browser all together. A list of compatible ones can be found in this article.
3. Reset your internet router
Even if you've taken the internet speed test and your download speed meets the minimum recommendation of 5-10mbps download speed, resetting your internet router can sometimes help clear up certain issues regarding stream playback.