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SQL Server OLE DB Driver 19 Token Login Error Solution (Downgrade to 18.7.5)
2026-04-15
Conclusion
- OLE DB Driver 19 may cause Token login failures; downgrading directly to 18.7.5 can resolve it.
When to Use This Solution
- When connecting to SQL Server (including Azure SQL) using OLE DB
- When using Token / AAD authentication
- When encountering
<token-identified principal>login errors - For SSIS / Linked Server / external system integration
Steps
1. Confirm the Error Message
- The following errors appear:
Login failed for user '<token-identified principal>'The server is not currently configured to accept this token
- Typically occurs when:
- Using OLE DB Driver 19
- Combined with Azure AD / Token authentication
- This is not a SQL permission issue, but a Driver compatibility issue.
2. Remove OLE DB Driver 19 (Optional)
- Go to ‘Control Panel → Programs and Features’
- Find:
- Microsoft OLE DB Driver 19 for SQL Server
- Proceed with uninstallation
- To avoid mixing multiple versions (which might cause connections to still pick up 19)
3. Install Specific Version 18.7.5
- Download the older Driver (official):
- Install:
- Microsoft OLE DB Driver 18.7.5
- After installation, restart services (e.g., IIS / SSIS / App)
Additional Notes
- Driver 19 has compatibility issues in certain Token authentication scenarios (especially with older systems).
- If using Linked Server, it will also affect connection tests.
- It is not recommended to mix Driver 18 and 19 to avoid DLL loading conflicts.
Final Thoughts
- Some errors are not about your permissions; they are caused by versions. Downgrading is often the quickest solution.
SQL Server OLE DB Driver 19 Token Login Error Solution (Downgrade to 18.7.5)
https://joyceowo.github.io/posts/en/343a78ea09fa8035994bf279bab00694/