Hulu is undoubtedly a highly popular US-based streaming app. And this live video streaming application is most stable and user-friendly but recently many users are reporting the Hulu error code 503 and 504.
Well, the Hulu error 503 and 504 are displayed as an error code 3 and is commonly related to the internet connection issues.
The Hulu error 503 indicated as the service unavailable error whereas the Hulu error 504 appears as the gateway timeout error.