since it random , this mean there will be something not right in backed-end infrastructure,
it can be latency or reachability issue or timeout
and some times there will be firewall or network inspection do this behavior
When we try reseting the virtual mazhine, the machine connects.
Also when we disconnect and reconnect network adapter, sometimes the issue is fixing.
But we are getting those error more now, its not practical to do reset of machines for each issues.
We have rebuild the Vcenter and Platform controller, can that be an issue for these issues.
And also we have 5 connection brokers, out of that one is not working fine, can that be an issue??