Incorrect PostgreSQL password prevents Veeam ONE database connectivity

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 uses native password authentication and the password configured in Veeam ONE Caching Service is incorrect, preventing database connections and report generation.

Recommended action:

Verify postgres password using '.\psql.exe -U postgres' from PostgreSQL bin folder. Temporarily add 'host all all 127.0.0.1/32 trust' and 'host all all ::1/128 trust' to top of pg_hba.conf. Restart Veeam ONE Caching Service. Update password in Veeam ONE Web Client (Configuration → Database → Reporting Database → Native authentication). Remove temporary trust entries from pg_hba.conf. Restart caching service again.