Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
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Hi Zack Zack
Based on the error messageThe credential is invalid. Unexpected sub status (6008) Tag: 657rx Code: 2148073494
this is commonly related to a sign-in/authentication issue where Windows or Microsoft 365 is using invalid, outdated, or corrupted cached credentials.
To help narrow this down, could you please confirm:
- Are you able to sign in successfully to https://office.com with the same account?
- Does the issue occur in all Microsoft 365 apps or only a specific app (Outlook, Teams, Word, etc.)?
- Does the same account work on another device?
- Are you the Microsoft 365 administrator for your organization, or is there an IT administrator managing the account?
In the meantime, you may try:
- Sign out of all Microsoft 365 apps.
- Remove any Microsoft 365 credentials from Credential Manager by going to Settings > Accounts > Access work or school, disconnect the work account, restart the device, then reconnect it.
- Clear the authentication cache located at:
%localappdata%\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy - Restart the device and try signing in again. These steps have helped resolve similar 657rx / 6008 authentication issues.
For your information, you can refer to this discussion with the similar situation: https://learn.microsoft.com/en-us/answers/questions/5675284/how-to-fix-it-the-credential-is-invalid-unexpected
If you're using a Microsoft 365 business account and are not the organization's administrator, I would also recommend contacting your IT administrator. They can verify whether there are any account, Conditional Access, device registration, or authentication-related issues on the Microsoft 365 tenant that may be contributing to this error. Some troubleshooting steps may require administrator permissions to investigate further.
I hope this information helps and look forward to your response.