Netflix Error Code 11800 message appears if your device’s information is outdated or damaged and needs to be refreshed. This error is most commonly observed on an Apple product, such as an iPhone, iPad, or Apple TV. The Netflix app may be missing or corrupt, which causes it to display this error. Restarting your device is the quickest solution to this problem. This should remove any previous data used by the Netflix app, allowing you to reload your content. If this doesn’t work, you should update the Netflix app from the App Store.