Kerberos authentication is configured for Identity Authentication to allow users to log on without a username and password when they are in the corporate network based on 'Configure Kerberos Authentication' SAP Help documentation.
However users are still prompted to authenticate with username and password.
The Troubleshooting Log is showing the following error:
Unsupported encryption SPNEGO token type
SAP Cloud Platform Identity Authentication Service
IAS, Kerberos, SPNEGO, fails, error, login, username and password, Unsupported encryption SPNEGO token type, RC4_HMAC, AES128_CTS_HMAC_SHA1_96, AES256_CTS_HMAC_SHA1_96, NTLMSSP, NEGOEXT , KBA , BC-IAM-IDS , Identity Authentication Service , Problem
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