@Voruganti Vishwanath *** Community Forum Tip: Try to avoid starting a new answer in response to an existing answer. Instead use comments to respond to existing answers. There is no guaranteed order to different answer which can make it hard following a discussion. Without the verbose output for for your client/user certificate and the NiFi truststore.jks file, it is a little difficult to help troubleshoot this issue. Running the following command with help me understand what the secured NIFi is presenting in the Server Hello portion of the TLS/SSL handshake: openssl s_client -connect 192.168.1.145:8087 Within the output of the above you will find a section "Acceptable client certificate CA names" which will be a list of trusted authorities. You need to make sure that the complete trust chain for your client/user certificate is included in the list of authorities. Did you try loading your certificate in another browser like Firefox? Did you try clearing your cache in Chrome? Thank you, Matt ... View more