WLAN router IP for 172.18.131.122, gateway for 192.168.8.1, computer connection router access to IP for 192.168.8.100, will now computer of 5155 released by means of mapping, the problem is coming, to establish a TCP Server on the computer to monitor, 5155, and then create a TCP Client on the computer to 172.18.131.122:5155 (WLAN router address) sends the message, can normal connection, but unable to send and receive data, have encountered the same problem player?