Internet keeps crashing while gaming

Ok,so,this happens while I'm playing online games,especialley counter strike 1.6.
While it's crashed,I can't load internet pages and re-enter the cs server,bun I CAN talk on yahoo messenger and my utorrent keeps downloading/uploading.
It crashes fairley often,for a little period of time(approx 30 secons to 1 min).
I am connected to a belkin router,through a wireless connection.
The lights are still on,even if the internet is down(I mean,semi-down,coz the Y!M and utorrent are still working o.O).
I tried disconnecting the router and re-connecting it,but with no success.
Closing the firewall is futile...
I'm open to suggestions.
I WILL NOT connect directley to the modem!
P.S. I think that I'll reinstall the router.

I'm not installing it through the wireless connection,I did it throug the computer that's connected to it.
I can not see if the problem persists with the cable plugged in directly and I don't rly think it's the router's problem.
The game went perfectly normal on my other laptop,that used wireless too,and it was windows 7 ultimate...
The only thing is that it was 32 bit...
I know it's a G type...
And,I'm not hosting a server,so I don't need to portforward...Isn't that right?>.>

I am having the same problem. Tried Both using MSI RG60SE wireless and Speed-touch modem. Firmwares updated,protocol v6 unchecked everything works fine while chatting browsing etc. When i log on BF3 after 10mins or so it disconnects. Always same time. The interesting part is even on my ps3 i play fifa and it always disconnects me from it after i finish of playing first match (ps3 is wireless connection with MSI router). Always same timing. Everything disconnects and it re-connects automatically.

I called providers everything fine from their side. No idea .. any help guys please? Thank you

Ummm,I'm not using any wi-fi adapter....It's just the incorpored one...
And,what's a P2P program?XD

I tried out another adapter,and no use.
Closed the utorrent,no use...

there
This pic is made while the net fell.
Something else I just found!
It seems that my upload has more serious problems.
While I was talking to a friend on Y!M,he couldn't hear me,but I heard him perfectly(during a net shot)