ChatGPT login loop keeps happening

You enter your email and password, click "Continue" — and ChatGPT just dumps you back at the login page. No error message, no explanation, just an endless loop that won't let you in.

ChatGPT login loop keeps happening

You enter your email and password, click "Continue" — and ChatGPT just dumps you back at the login page. No error message, no explanation, just an endless loop that won't let you in.

What's actually happening

The login loop happens when ChatGPT's authentication system completes your login but can't redirect you properly to the chat interface. You're technically logged in for a split second — OpenAI's servers recognise your credentials — but something breaks the handoff to chatgpt.com.

Three things usually cause this: corrupted cookies or cache telling your browser you're already logged in when you're not, browser extensions blocking the redirect, or a mismatch between the login domain (auth0.openai.com) and the main site. Sometimes VPNs or privacy-focused browsers trigger it by blocking third-party authentication cookies.

You'll see the loop on both chatgpt.com and the mobile app, though the symptoms differ slightly. On desktop, you get stuck between auth0.openai.com and chatgpt.com. On mobile, the app shows the login screen repeatedly after you've entered credentials.

How to fix it

1. Clear ChatGPT-specific data

Open your browser settings and clear cookies and cache for the last hour only — don't wipe everything. In Chrome, go to Settings > Privacy and security > Clear browsing data. Select "Cookies and other site data" and "Cached images and files," then choose "Last hour" from the dropdown. Click "Clear data."

If you're on Safari, go to Preferences > Privacy > Manage Website Data, search for "openai" and "auth0," then remove those entries specifically.

Try logging in again immediately after clearing. If the loop persists, move to step 2.

2. Disable extensions and try incognito

Open an incognito or private browsing window (Ctrl+Shift+N in Chrome, Cmd+Shift+N on Mac). Go to chatgpt.com and attempt login. If it works here, a browser extension is blocking the redirect.

Common culprits: ad blockers (uBlock Origin, AdBlock Plus), privacy extensions (Privacy Badger, Ghostery), and script blockers (NoScript). Disable them one by one on chatgpt.com through your extension settings, then test login in a normal window.

If incognito doesn't fix it, the problem isn't extensions.

3. Check your VPN and DNS

If you're using a VPN, disconnect it temporarily and try logging in. Some VPN servers get flagged by OpenAI's fraud detection, causing authentication to fail silently.

Still stuck? Change your DNS to Google's (8.8.8.8 and 8.8.4.4) or Cloudflare's (1.1.1.1). On Windows, go to Network settings > Change adapter options > right-click your connection > Properties > Internet Protocol Version 4 > Use the following DNS server addresses. On Mac, System Preferences > Network > Advanced > DNS.

Restart your browser after changing DNS.

4. Try a different browser or device

Download a clean browser you don't normally use — Firefox if you're on Chrome, Edge if you're on Safari. Don't sign in to the browser itself or install extensions. Go directly to chatgpt.com and attempt login.

If that works, your primary browser has a deeper configuration issue. You can either keep using the new browser for ChatGPT or reset your original browser to defaults (Settings > Reset settings).

The mobile app follows different rules. If you're looping there, delete the app completely, restart your phone, then reinstall from the App Store or Google Play. Don't just force-close it.

If that doesn't work

You've hit a server-side authentication problem. Contact OpenAI support through help.openai.com/en/articles/6614161 with these details:

  • Exact browser and version (find in Settings > About)
  • Your account email
  • Screenshot of the URL bar during the loop
  • Whether incognito mode worked
  • Any VPN or proxy you're using

Include the phrase "authentication redirect loop" in your message — support searches tickets by keywords, and this gets you routed faster.

OpenAI typically responds within 2-4 business days for login issues. They may ask you to try logging in from a specific test URL to isolate whether it's a regional routing problem. If you're on a workplace or school network, ask IT to whitelist *.openai.com and *.auth0.com.

For more general troubleshooting steps when ChatGPT isn't working or if you can't log in for different reasons, those guides cover the full range of access problems.

Questions people actually ask

Q: Does clearing cookies log me out of everything?

A: Yes, if you clear all cookies. That's why you should select "Last hour" only — it removes just the broken ChatGPT session data without touching other sites.

Q: Will this delete my chat history?

A: No. Your chat history lives on OpenAI's servers, not in your browser. Clearing cache and cookies won't touch it.

Q: Why does this only happen on ChatGPT?

A: ChatGPT uses Auth0 for login, which requires redirects between multiple domains. If any redirect fails, you loop. Most sites authenticate on a single domain.

What to remember

  • Clear only the last hour of cookies and cache first — don't nuke everything
  • Test in incognito mode to rule out extensions before making big changes
  • VPNs and custom DNS settings frequently cause silent authentication failures
  • The mobile app requires a full uninstall and reinstall, not just a logout
  • If nothing works after trying a completely fresh browser, it's server-side — contact support with specific details

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*openai-support.com is an independent resource, not affiliated with OpenAI Inc.*

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