We want to make sure all students have good video performance. The videos themselves are hosted on a major international video network with many distributed servers that can handle large numbers of viewers at the same time. On rare occasions there have been temporary regional outages but in most cases video buffering will be related to local PC or network issues. Sometimes it can be your Internet Service Provider (ISP) that is having issues. Even though you may be having good results with other major video sites such as YouTube, it may still be a localized issue as the ISP will have different connections to different primary data pipelines.
If the video issues don’t clear up after a day or so, it is best to first double-check all of your local network connections and settings to confirm that everything is working well. If that doesn’t help please contact support and we will help narrow down the issue. Include your system type (PC or Mac), your browser type and version, your type of network connection, and the city/state you are accessing the lessons from. It may be necessary to run a Trace Route and we’ll help you with that process. We’ll use the information to find the source of the issue and how it can best be solved.