Please find below in quick reference format details of client-server communication for GWB floating licenses.
The components making up the server, and their functions are:
The communication between a client asking to check out a seat and the server responding to the request can be summarized:
Any firewall positioned between the clients and the server needs to allow lmgrd.exe and hydrokey.exe to communicate over TCP. Depending on the type of firewall, you need to allow either both applications or the ports assigned to them to traverse the firewall. If you allow by port, you should explicitly assign a port to each application (see Server ports).