This could be for a variety of reasons! But most of the time, this is due to drops in internet connection, which happen from time to time. We recommend a minimum download speed of 10. Check your speeds here: https://www.speedtest.net/
If your speeds are on the slower side, you may need to check in with your internet service provider to see if there is any way they can optimize your connection.
For the best streaming experience, we recommend using Google Chrome. If you’re already using Chrome, please clear your cache and cookies, then open a new window. You should also make sure you are using the latest version of Chrome. If the trouble persists, you can also try a different browser and see if that helps.
Also, you can adjust the video quality to see if that helps. Start playing the class and you'll see a gear icon in the bottom-right corner of the player. Click on the icon and the streaming options will appear. The lower the number, the lower the video quality—meaning the class will play more smoothly with a slow connection.
The Glo Customer Experience team is always here to assist as well so please reach out to us and let us know what steps you have tried as well as a screenshot of your speed test: https://www.glo.com/settings/support