One last thing that might cause an issue is the presence of a load balancer in front of Artifactory or Xray. If connection tests intermittently succeed, or all of the tests recommended above pass, but Xray fails to scan binaries, it could be caused by the load balancer. In this case, you might need to bypass the load balancer in front of Artifactory. Xray needs to connect to just one Artifactory node, as the results of any scan will be propagated to the rest of the cluster. However, to ensure the system stays online, try using the load balancer URL first.