I do found my solution alone.. My I.P address is set by the ISP into static ex. 122.53.22.192, so I change the IP4 to dynamic.. and I open the command prompt type ipconfig - when i was assign to 192.168.0.7
i change the IP4 dynamic to Static I.P and input 192.168.0.7 and the given subnet and default gate away.
And now my Network doesn't disconnect from the Server.. if it is seen as Disconnected Just open it and it will open as Connected..
After several weeks, still stable network and everytime I open the network it seems so fine... thanks to me. Hope it helps to people who are in trouble same as I did.. you can also ask me for free.
Godbless