thanks guys
i got it fixed
the problem was that my slots were more then my speed
so i increased my internet speed
so when i had 14MB speed
and my server was like
15/32
and my family using their devices too and skype
because in my house 3 laps
and my 1 pc
and 5 mobiles
always connected
so when they use browser or skype
the internet speed really went low so it had to restart