Solution : https://service.sap.com/sap/support/notes/608280 (SAP Service marketplace login required)
Key words :
nt service 'nt lm security support provider', terms ora-12638 credential retrieval failed sqlnet, service 'remote procedure call, credential retrieval failed', prerequisites operating system, enable os authentication, windows nt, cases sqlnet, set 'sqlnet, sap system
Related Notes :
| 614036 | Composite SAP Note: ORA-12631/ORA-12638 |