The Connection Manager is the tool to setup all main input and output communication protocols. All connections and protocols set up here are accessible to any command and user control as well as Nodes for in and output communication.
For further information please see
Where applicable, a protocol can be assigned to a dedicated network adapter in Widget Designer and Widget Designer Unlimited Webclients. This is of interest when working with multiple protocols that you would like to separate from each other or when dedicated IP addresses / ranges should be supported.
Per default, the Widget Designer Free Version uses the same network adapter for each protocol. It cannot access the drop-down list to choose another adapter. If you open a new project, the drop-down list will always say "Any (System Selects)". That means that the operating system Windows decides what adapter is chosen. In general that would be the one that you have set up as the primary adapter in the (advanced) network settings.