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3374580 - Dispatcher process failed with ORA-12638 after starting the services


SAP dispatcher failed to start due to error ORA-12638, in Oracle client trace, we see the following error:

[05-SEP-2023 15:05:27:219] naun5authent: Authentication type is 0
[05-SEP-2023 15:05:27:219] naun5authent: SPP is KERBEROS
[05-SEP-2023 15:05:27:219] naun5authent: SPN is DSOLAN\<hostname>
[05-SEP-2023 15:05:27:219] naun5authent: SSPI: 0x80090342 error in InitializeSecurityContext
[05-SEP-2023 15:05:27:219] naun5authent: exit
[05-SEP-2023 15:05:27:219] naunauthent: exit
[05-SEP-2023 15:05:27:219] nau_ccn: get credentials function failed
[05-SEP-2023 15:05:27:219] nau_ccn: failed with error 12638



SAP on Oracle 19c


SAP NetWeaver all versions


RC4_HMAC_MD5,ORA-12638 , KBA , BC-DB-ORA-SEC , Security Messages , Problem

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