It is common practice by most Internet Service Providers to ban consumers to run any servers using their Home Internet connection. They prevent any Inbound connection from
Internet into Consumer home PC or in some cases can shut service down or issue a fine.
Muzecast does not require Inbound connection and can work without any TCP port opened for Inbound. All communications are done using only Outbound
connection, therefore Muzecast
will not violate ISP policy for not running any servers and does not require any ports to be forwarded (opened) in your router/firewall.
But Muzecast still provides ability for users, who allowed and want to use Inbound connection and connect directly from
Android device to their home computer.
If you want to open a TCP port (in case if Muzecast failed to configure your router using UPnP protocol)
you can reference http://portforward.com/
for more information about your router and how to configure
port forwarding manually.