Hulu can fall prey to the same problems that plague other online services. Internet connectivity issues, malfunctioning apps, web players, and all sorts of other things can prevent Hulu from working.
Why is HULU not working and how to fix it? | Hulu Tutorial
To get Hulu working again, you'll need to perform some troubleshooting.
The two most common issues that cause Hulu not to work are internet connection issues and software issues. The first issue can be caused by your home network equipment or internet connection, but it can also happen if the Hulu service itself is experiencing connectivity issues. The second broad category occurs when an issue with the web player or Hulu app prevents it from working properly.
Hulu is an internet streaming service, so it requires a few things to work properly. You need a fast internet connection, a compatible device, and a web browser that can run the web player or the appropriate Hulu app for your device. If there is a problem with any of these components, Hulu will not work.