4.1.2 Accept
The Share Receiver receives the Socket Connect header (section 2.2.1) for the two successful connections. After an implementation-defined delay, the Share Receiver selects one of the socket connections for which to send a Socket Connect header reply. This reply exactly matches the data received on that socket.
The third connection, which would have been successful given enough time, did not complete before the Share Receiver made its selection. It is not possible to determine which connection types will be successful prior to their actually connecting.