ChatGPT login keeps looping won't sign in

You click "Log in", enter your credentials, hit submit — and ChatGPT just dumps you back at the login screen. Over and over. This redirect loop affects users across browsers and devices, and it's almost always tied to co

ChatGPT login keeps looping won't sign in

You click "Log in", enter your credentials, hit submit — and ChatGPT just dumps you back at the login screen. Over and over. This redirect loop affects users across browsers and devices, and it's almost always tied to cookies, cache conflicts or browser security settings blocking the authentication handshake.

What's actually happening

When you log in to ChatGPT, your browser needs to accept and store session cookies from both chatgpt.com and auth0.openai.com. These cookies prove you're authenticated. If your browser blocks third-party cookies, runs aggressive privacy extensions, or has corrupted cache data, the authentication completes on OpenAI's servers but your browser never receives the token that keeps you logged in.

You'll see the login page reload, sometimes with a brief flash of the ChatGPT interface. The URL might flicker between chatgpt.com/auth/login and chatgpt.com before bouncing back. No error message appears because technically nothing failed — the authentication worked, but your browser rejected the session credential.

This also happens if you're using an outdated browser, have JavaScript disabled, or if your network (corporate VPN, school firewall, certain ISPs) strips authentication headers.

How to fix it

1. Clear your browser cache and cookies completely

In Chrome: Settings > Privacy and security > Clear browsing data > Time range: All time > Check "Cookies" and "Cached images and files" > Clear data.

In Firefox: Settings > Privacy & Security > Cookies and Site Data > Clear Data > Check both boxes > Clear.

In Safari: Safari menu > Settings > Privacy > Manage Website Data > Remove All.

After clearing, close all browser windows completely, then reopen and try logging in again.

2. Enable third-party cookies temporarily

Chrome: Settings > Privacy and security > Third-party cookies > Allow third-party cookies (or add [*.]openai.com and [*.]auth0.com to "Sites that can always use cookies").

Firefox: Settings > Privacy & Security > Enhanced Tracking Protection > Custom > Uncheck "Cookies" or set to "Cross-site tracking cookies".

Safari: Settings > Privacy > uncheck "Prevent cross-site tracking".

You only need this enabled for the login process. Once you're in, you can re-enable stricter settings.

3. Disable browser extensions

Privacy tools like Privacy Badger, uBlock Origin, Ghostery, or any VPN browser extension can block authentication cookies. Open an incognito/private window (which disables most extensions by default) and try logging in there. If it works, go to your extensions and disable them one by one to find the culprit, or whitelist chatgpt.com and auth0.openai.com in your extension settings.

4. Try a different browser

If you're stuck in Chrome, download Firefox or Edge and attempt login there. If it works, the problem is specific to your Chrome profile — you can either troubleshoot further or just use the working browser for ChatGPT.

5. Check your network

Corporate networks, school Wi-Fi, and some public hotspots block OAuth authentication flows. If you're on a managed network, try switching to mobile data or a personal hotspot. If that fixes it, contact your IT department about whitelisting *.openai.com and *.auth0.com.

If that doesn't work

If the loop persists across browsers and networks, your account might have an authentication flag set from a previous security event. Check your email for any messages from OpenAI about "unusual activity" or required verification.

You'll need to contact OpenAI support. Send a message through help.openai.com/en with:

  • Your account email
  • Screenshot of the login loop (show the URL bar)
  • What browsers and devices you've tried
  • Whether incognito mode works

They typically respond within 24-48 hours. If you're a ChatGPT Plus or Team subscriber, mention your subscription in the subject line — paid accounts often get faster replies.

For immediate access, you can try the ChatGPT mobile app (iOS or Android) — the app uses different authentication APIs and sometimes bypasses browser-specific login issues.

Questions people actually ask

Q: Why does it work in incognito but not regular browsing?

A: Incognito disables extensions and uses fresh cookies. Your regular browser has something — an extension, a cookie conflict, or strict privacy settings — blocking the session token.

Q: I cleared everything and it still loops. What now?

A: Reset your browser completely. Chrome: Settings > Reset settings > Restore settings to their original defaults. This nukes all customisations but often fixes persistent authentication bugs.

Q: Does this mean my account is banned?

A: No. Banned accounts see an explicit "Your account has been disabled" message when trying to log in. Login loops are technical, not policy-related. If you're worried about account status, read about how to handle a ChatGPT ban.

Q: Can I use ChatGPT without logging in?

A: Not anymore. OpenAI removed guest access in April 2024. You must have an account and stay logged in.

What to remember

  • Clear all cookies and cache for chatgpt.com and auth0.openai.com first
  • Temporarily allow third-party cookies during login
  • Test in incognito mode to isolate extension conflicts
  • Corporate and school networks often block OAuth authentication
  • If nothing works across devices and networks, email OpenAI support with specific details

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

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