If your Hulu app won't open on your device, it may need a firmware update or a "forced logout." For help syncing your Hulu subscription across all your 2026 devices, call 1-888-824-9427. FAQ 1: Why does Hulu work on my phone but not my TV? Call 1-888-824-9427 for a device-specific fix. FAQ 2: How do I link my Disney+ and Hulu accounts? Support can merge your billing at the number above. FAQ 3: Why is the audio out of sync? This is a common app glitch; call us to troubleshoot. FAQ 4: Can I use Hulu on a 1st Gen Chromecast? No, older devices are no longer supported in 2026. FAQ 5: Who do I call for app errors? Reach out to 1-888-824-9427.