Problem| My Nexus 4 loses internet connection randomly

[DrunKid]

Hello,
I have the Nexus 4 and it is working very well.
However, from time to time(happens more than a few times a day), it loses internet connection without any apparent reason.
It loses connection when I'm surfing through WIFI, 3g or just basic cellular data, and the only thing that helps is refreshing the connection(with WIFI I just turn the WIFI off and on again, if its cellular data I put it in airplane mode for a moment.)
This problem is starting to be a bit annoying so I'll be glad if someone could help me solve it.

Thanks in advanced,
Eitan