ChatGPT & Claude Down? How to Fix "https://www.google.com/url?sa=E&source=gmail&q=challenges.cloudflare.com" Loop (Nov 18, 2025)

🚨 ChatGPT & Claude Access Denied: Cloudflare Error (Nov 18, 2025)

Is your ChatGPT or Claude stuck on the "challenges.cloudflare.com" screen? You are not alone.

A global outage affecting Cloudflare is causing this infinite loop. Here are 3 quick fixes you can try right now.

ChatGPT Cloudflare Error Screen

✅ How to Fix the Infinite Loop

  1. Disable Extensions: Turn off AdBlockers (uBlock, AdGuard) or VPNs temporarily. This is the most common fix.
  2. Use Incognito Mode: Open a private window (Ctrl + Shift + N) and try logging in again.
  3. Change Network (Hotspot): Disconnect from Wi-Fi and use your mobile data hotspot to change your IP address.

Claude AI Error Screen

If these methods don't work, it's a server-side issue. Please wait for Cloudflare to resolve the outage.

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