Hello,
Thanks for the response.
JMS uses 4001 from desktop(agent) to connection server which is allowed on firewall as you can see in below table as well. To open a port in FW will be a time taking task(in my env. ! 
).
So I am not sure if these problems are just because of 4002(moreover 4002 is for secure JMS which usually is required for Enhanced security mode , mine is Enabled). The agent 5.3 works well for all the OS so I guess it cannot be just the port 4002 (unless someone can explain me otherwise).
However I will surely keep this in my mind if nothing else helps !
TCP Ports for View Connection Server and Replica Server Instances
| Source | Destination | Port | Protocol |
| View Desktop | Connection Server | 4001 | JMS |
| Replica Connection Servers | Connection Server | 4100 | JMSIR |
| Admin Browser | Connection Server | 80 | HTTP |
| Admin Browser | Connection Server | 443 | HTTPS |
| Client 1 | Connection Server | 4172 | PCoIP (TCP and UDP) |
| Client 2 | Connection Server | 443 | HTTPS |
| Connection Server 1 | View Desktop Subnet | 4172 | PCoIP |
| Connection Server 2 | View Desktop Subnet | 3389 | RDP |
| Connection Server | Virtual Center Server | 443 | HTTPS |
| Connection Server | Virtual Center Server | 80 | HTTP |
| Connection Server | Virtual Center Server (View Composer) | 18443 | HTTPS |