YouTube may not be working due to a variety of reasons such as weak or unstable internet connection, server outages on YouTube's end, app or browser glitches, outdated apps or software, corrupted cache/data, incorrect device date and time, or interference from browser extensions like ad blockers. To fix it, you can try the following steps:

1. Check if YouTube servers are down via websites like Downdetector. If they are, the problem is on YouTube's side and usually resolved by the service.
2. Restart your device and the YouTube app or browser.
3. Ensure your internet connection is stable and strong.
4. Update your YouTube app and device system for compatibility.
5. Clear cache and data of the YouTube app or your browser’s cache.
6. Check your device’s date and time settings are correct.
7. Disable any browser extensions that might block YouTube content.

If these steps don’t resolve the problem, reinstalling the app or checking for device compatibility issues may help. These fixes work across Android, iPhone, PC, and browsers like Chrome.

Recent reports (October 2025) show occasional YouTube outages affecting many users worldwide, with YouTube’s technical teams working to restore service when outages happen.