Flatcast uses the protocol UDP Port 40123. At the moment your system does'nt work with that protocol.
Typical reasons:
You are connected to the internet via router/firewall, which blocks UDP.
You are using a "Personal Firewall" like ZoneAlarm, XP Firewall etc. Please open in the corresponding configuration settings UDP Port 40123.
You are connected to the internet via router and there is no default gateway in IP-settings (usually default gateway = internal IP-adress from RouterY
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