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
The access token has expired (which is normal after a few minutes or hours), and the app couldn’t refresh it because:
The refresh token also expired
The refresh token was missing or invalid
Session expired on the identity provider (e.g. Azure AD, Okta)
âś… Fix:
Log out and log back in to initiate a fresh login session and get new tokens.
If you’re a developer: make sure your app stores and uses the refresh token properly.
2. SSO Session Timed Out
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:
Re-authenticate manually by logging in again.
Check your SSO provider’s session timeout settings
Also Read : Sora 2 Invite Code October 2025 | How to get
3. Refresh Token Revoked
Sometimes, refresh tokens are revoked due to:
Password change
Security policy update
Manual admin action
âś… Fix:
Re-login manually.
If this happens often, check with your IT/admin/security team.
4. Clock Skew
If your system time is significantly off, token validation might fail due to time mismatch.
âś… Fix:
Ensure your device or server is syncing time with a reliable NTP server.
5. SSO Service Down or Misconfigured
Sometimes the SSO provider’s endpoint is down or misconfigured, causing refresh failures.
âś… Fix:
Check the SSO provider’s status page (e.g. Azure AD, Okta, etc.).
Try again later or contact IT support.
🛠️ Developer Notes (if applicable):
If you’re building or maintaining the app:
Verify that the app is properly storing the refresh token
Ensure you’re handling
401 Unauthorizedresponses and triggering re-authentication properlyUse a valid
client_idandclient_secretif required for token refresh
Be the first to comment