I have a Power BI Report Server, version 15.0.1113.165. On the report server I have a connection to an Oracle database running on a remote non-Windows server that I want to use the current user's credentials (e.g., using Kerberos). This connection fails with an invalid username/password error. It does not appear to be using Kerberos in the attempt. The report server config file uses <RSWindowsNegotiate/>. The report server runs under a domain service account. The account is configured to allow the delegation. SPNs have been created on the service account. I can't find anything in the logs (Windows and report server) to indicate the problem. Kerberos logging is enabled. When logged on to the machine hosting the report server, I can use SQL*Plus to connect to the Oracle database using Kerberos so that much is working. What am I missing to get the report server to use Kerberos?