Misleading message

Every so often I get a message that an application is “trying to receive a connection from the Internet” but the TCP/IP address is that of another computer on the network. In fact the summary says that it is another computer on the network that is trying to connect, not a computer on the Internet. This is very confusing!! ???

It is not a massive problem but it is hard enough deciding what to allow and what to block (even with Threatcast help) without confusing messages like this. Thanks.


Do you have more details about these alerts? What program and ports are involved?