YouTube Error Code 15 Fix | This request was blocked by the security rules

YouTube Error Code 15 typically refers to a network or access-related issue โ€” often tied to firewalls, DNS, or browser configuration.

This error isnโ€™t officially documented by YouTube, but users often report it as:

“Error Code 15: This request was blocked by the security rules.”

It’s usually triggered by network-level security systems, like a corporate firewall or certain browser security extensions.


โœ… How to Fix YouTube Error Code 15

1. Refresh or Restart Everything First

  • Refresh the YouTube page (F5).

  • Restart your browser.

  • Restart your device.

  • Try another browser (Chrome, Firefox, Edge).

2. Check Your Internet Connection

  • Switch from Wi-Fi to mobile data (or vice versa).

  • Restart your router.

  • If you’re on a school/work/corporate network, the error might be due to firewall restrictions.


3. Disable VPN, Proxy, or Custom DNS

  • Turn off VPN or Proxy: Some servers may block YouTube traffic via certain IPs.

  • Revert to default DNS:

    • Go to your network settings and remove any custom DNS (like AdGuard, NextDNS).

    • Use Google DNS instead:

      • 8.8.8.8 and 8.8.4.4


4. Disable Browser Extensions

Especially security, privacy, or ad-blocking extensions (like uBlock, NoScript, Privacy Badger):

  • Go to your browser extensions.

  • Temporarily disable them all.

  • Refresh YouTube โ€” if it works, re-enable one-by-one to find the culprit.


5. Clear Browser Cache and Cookies

  • Open browser settings โ†’ Privacy/Security โ†’ Clear browsing data.

  • Clear:

    • Cookies

    • Cached images/files


6. Try Incognito Mode

  • Open YouTube in a private/incognito window to bypass cached data or cookies that may be interfering.


7. Check Firewall or Security Software

  • If youโ€™re using corporate antivirus or firewall software (like Norton, Kaspersky, ESET), temporarily disable web protection and test again.

  • Some firewalls block traffic based on security rules, which can trigger error 15.

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๐Ÿงช Quick Test:

  • Visit YouTube via https://youtube.com on your for or from another network.

    • If it works, the problem is likely your network or DNS/VPN settings.