@sandip87  It would be difficult to point our the specific misconfiguration without seeing your nifi.properties, login-identity-providers.xml, and authorizers.xml files.  Also sharing the complete stack trace thrown during NiFi service startup would be helpful as well.  There should be more than what you shared that was logged in the nifi-app.log. Thanks, Matt ... View more

@sandip87  This statement is not clear to me: We had combined them to form one certificate and then follow steps in the NiFi documentation. Sounds to me like your trusts chain has an intermediate and root CAs in it. That means your truststore must have two trustedCert Entries in it.  One for intermediate CA and other for the Root CA. It sounds like you only have the root CA in your truststore.   If you found this response assisted with your query, please take a moment to login and click on "Accept as Solution" below this post. Thank you, Matt ... View more