The error “token has expired and refresh failed” signifies that an access token, used for authentication, has become invalid, and the system was unable to automatically obtain a new one using a refresh token.
This typically occurs in scenarios involving Single Sign-On (SSO) or OAuth 2.0 authentication flows.
đź”§ Common Causes & Fixes:
1. Token Expired & No Refresh Token Available
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The access token has expired (which is normal after a few minutes or hours), and the app couldn’t refresh it because:
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The refresh token also expired
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The refresh token was missing or invalid
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Session expired on the identity provider (e.g. Azure AD, Okta)
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âś… Fix:
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Log out and log back in to initiate a fresh login session and get new tokens.
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If you’re a developer: make sure your app stores and uses the refresh token properly.
2. SSO Session Timed Out
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If you haven’t used the service in a while, your session with the SSO provider (e.g. Microsoft, Google, Okta, etc.) might have timed out.
âś… Fix:
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Re-authenticate manually by logging in again.
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Check your SSO provider’s session timeout settings
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3. Refresh Token Revoked
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Sometimes, refresh tokens are revoked due to:
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Password change
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Security policy update
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Manual admin action
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âś… Fix:
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Re-login manually.
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If this happens often, check with your IT/admin/security team.
4. Clock Skew
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If your system time is significantly off, token validation might fail due to time mismatch.
âś… Fix:
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Ensure your device or server is syncing time with a reliable NTP server.
5. SSO Service Down or Misconfigured
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Sometimes the SSO provider’s endpoint is down or misconfigured, causing refresh failures.
âś… Fix:
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Check the SSO provider’s status page (e.g. Azure AD, Okta, etc.).
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Try again later or contact IT support.
🛠️ Developer Notes (if applicable):
If you’re building or maintaining the app:
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Verify that the app is properly storing the refresh token
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Ensure you’re handling
401 Unauthorizedresponses and triggering re-authentication properly -
Use a valid
client_idandclient_secretif required for token refresh
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