It is necessary to have certain ports open for the Qube! Supervisor, Worker, and Client machines to communicate amongst themselves. You should either disable the firewall completely on the local machine, or open specific ports for Qube! to communicate via TCP and UDP.
Supervisor ports
- 50001 TCP and UDP inbound
 - 50002 TCP and UDP inbound
 
PostgreSQL on the Supervisor:
- 50055 TCP inbound
 
Worker port
- 50011 TCP and UDP inbound
 
Client
- no ports need be open on a machine acting soley as a Qube client
 
See Also
For Qube versions earlier than 7.0 that use MySQL, please refer to the documentation that includes the MySQL port information