Hi @asra we have a workaround in place for now. I am in touch with our security team to understand the root cause but haven't figured it out yet.  All i did was to deploy a machine with UI (windows or Ubuntu since centos / redhat are command line only) within the same network as your ambari server. This will bypass any proxy / firewall / group policy settings.    If not please provide detailed info about your setup and i will try to point out thing you can try.  ... View more