I took this from the Client users manual:
http://www.cybercafepro.com/downloads/eng/OneRoof_CyberCafePro_MCS_Server_Manual.pdf - Page 2.
Windows 7 Users Only: Windows 7 users need their ‘Network Location’ to
be set up as a ‘Home’ or ‘Work’ Network (and not as a ‘Public Network’).You
can change this setting in Windows 7 by following these steps for both the
CCP Clients and MCS (Server) PCs: a. Click the Windows Start button, and go to Control Panel and select
Network and Sharing Center.
b. In the Network and Sharing Center window that opens, look at the
hyperlink under your Internet NIC adapter. Make sure it does not say
‘Public Network’. If it does say ‘Public Network’, click the ‘Public Network’
hyperlink to change it.
c. Then click ‘Home network’ or ‘Work network’. The network setting will then
be updated and the OneRoof CyberCafePro Client software will then be
able to communicate with the OneRoof CyberCafePro Main Control
Station (“Server”) software