Server to open the success, but the message is not received, it is like hanging up

[momo25]

I opened the server in the background, but it often can not accept the message, no response, Oddly, I do not stop the server,and it is running

[momo25]

when it runs in background for a long time,it will get no response .but I have already make it run in background。

[momo25]

sorry,it works after I set the protocols。