SSPI authentication failure blocks Veeam ONE caching service database access

critical

securityUpdated Mar 6, 2026(via Exa)

Sources

KB4829: Unable to Generate Reports Due to Error “Veeam ONE Caching Service Maintenance”www.veeam.com

Technologies:

Veeamsubject

PostgreSQLThe root cause of this issue originates in PostgreSQL

How to detect:

PostgreSQL is configured for Windows-based (SSPI) authentication, but the service account running Veeam ONE Caching Service is not present in pg_ident.conf, resulting in authentication failure and report generation failures.

Recommended action:

Open services.msc, locate Veeam ONE Caching Service, note the 'Log On As' service account. Edit C:\Program Files\PostgreSQL\17\data\pg_ident.conf and add the service account in user@domain format. Restart Veeam ONE Caching Service and verify 'DB test result: Ok' in Service.log.