Written by c # socket server side and client side, has been put into use in the cloud and PC, also on the same PC installation service client and used at the same time, there has been no problem,
Today are facing in the same computer installed on the server and the client, the client can send data to the server side, but the server-side data is returned to the client, cause the program can not run normally, now also, make sure there's no open Windows 7 firewall (should be pirated Windows 7 was not open), the client is even use server IP 127.0.0.1
Consult everybody what can affect the data transmission?