How to Fix Claude Login Loop and Redirect Issues

A frustrating issue some users encounter is the "login loop." This occurs when you navigate to claude.ai, enter your login credentials (or authenticate via Google), and instead of being directed to the chat dashboard, you are repeatedly redirected back to the login screen, faced with an infinite loading spinner, or forced to authenticate over and over again.

This behavior is almost always caused by a breakdown in how your browser handles authentication tokens, session cookies, or cross-site security policies between Claude's main domain and its identity providers. Follow these step-by-step procedures to resolve the redirect loop.

---

Step 1: Clear Claude-Specific Cookies and Local Storage

Corrupted browser cookies or outdated local storage data can make Claude's servers think your session is active and expired at the same time, triggering a redirection cycle. Clearing this specific data resolves most loops without wiping your entire browser history.

On Google Chrome, Edge, or Brave: 1. Navigate to **claude.ai** (even if you are stuck on the login page). 2. Click the **padlock or tune icon** on the far left of your browser's address bar. 3. Click **Site settings** or **Cookies and site data**. 4. Click **Manage on-device site data** or **Clear data**. 5. Remove all stored cookies and cache files associated with `claude.ai` and `anthropic.com`. 6. Close the tab, open a new window, and attempt to log in again.

On Apple Safari: 1. Open Safari and click **Safari** in the top menu bar, then choose **Settings** (or **Preferences**). 2. Click the **Privacy** tab. 3. Click the **Manage Website Data...** button. 4. Search for `claude` and `anthropic`. 5. Select the results and click **Remove All**. 6. Restart Safari and try to log in.

---

Step 2: Disable Strict Tracking Protection & Shield Settings

Claude utilizes external security and authentication systems (including Cloudflare and identity providers) to authenticate your account securely. High-security browsers or privacy extensions can block these cross-origin connections, mistaking them for third-party trackers.

• Brave Browser Shields: Brave's built-in shields frequently break Claude's login process. Click the Brave Shield icon (lion head icon) in the address bar while on Claude's site and toggle Shields to Down/Disabled. Try logging in again.
• Safari Cross-Site Tracking: Go to Safari Settings > Privacy. Uncheck Prevent cross-site tracking. Keep this unchecked temporarily to see if your login completes, then re-enable it once logged in.
• Firefox Enhanced Tracking Protection: Click the shield icon to the left of the URL bar and toggle off the switch for Enhanced Tracking Protection on Claude's domain.

---

Step 3: Test Login in a Private / Incognito Window

Browser extensions (such as ad blockers, cookie managers, script blockers, or password managers) are a common cause of authentication loops.

1. Open a new Incognito or Private Browsing window.
2. Go directly to claude.ai/login.
3. Try to log in manually using your email address (requesting a temporary login code) rather than the Google OAuth button.

If the login succeeds in private mode, an active browser extension is interfering with Claude. You will need to disable your extensions one by one in your primary browser window to isolate the culprit. Pay close attention to privacy tools like uBlock Origin, Privacy Badger, or custom script engines.

---

Step 4: Resolve Google OAuth Authentication Divergence

If you originally registered your account using the "Continue with Google" option, but are now attempting to sign in using your email address and a temporary passcode (or vice versa), Claude’s system may experience a mismatch in session tokens.

• Ensure you always use the exact same authentication method you used when registering.
• If you are logging in with Google, make sure you are logged into the correct Google account in your current browser profile. If you have multiple Google profiles open, the OAuth handoff may attempt to authenticate using the wrong primary email address.

---

When to Escalate

If you have cleared your browser cookies, disabled shields, tested in multiple browsers, and tried on a different device (like your phone via cellular data) but still find yourself stuck in a login loop, your account may be experiencing a server-side authentication lock, or the account may have been flagged by safety filters.

Reach out to Claude Support via the help center at support.anthropic.com. Report the exact behavior, confirm that you have cleared your browser cache, and let them know whether you are using Google Sign-In or email passcodes. Do not attempt to log in repeatedly in a short period of time, as this can trigger a temporary IP ban.