Netflix Error Code 17377 often indicates a caching issue or corrupted data within the Netflix app. Begin by signing out of your Netflix account and closing the app. Clear the app's cache and data through your device's settings (Settings > Apps > Netflix > Storage > Clear Cache/Clear Data). Reopen the Netflix app, sign back in, and check if the error persists. If the problem continues, uninstall and reinstall the Netflix app to ensure a fresh installation, potentially resolving any underlying data corruption. Verify your internet connection stability as well, as intermittent connectivity can trigger this error. If problems persist, contact Netflix support for further assistance.