Firstly, thank you for your quick replies. I have been trying some things the past few days. But im restricted by time.
Have you tried starting up the laptop in safemode to determine if the problem is from an installed program or not?
I did start in safe mode, but it did not help because I need some thing that uses the network constantly for about 15 to 20 minutes to see whether the network is jamming. There is no other indication, ie. it says 'connected' in the taskbar, and is listed in the modem page even when it is jammed.
Now I have to say, when this jam occurs, and as it is stuck jammed, the desktop, connected via lan cable, and phone connected via wifi, does not experience any problem with internet connectivity.
If the driver was Windows 7 certified it would also include the Msoft Virtual WiFi mini port which should be showing up in the ipconfig, so this may be part of the problem.
I updated the driver manually from the intel site, when this problem started. After you mentioned '7 certified', I tried updating from the device manager, and it says up to date. How do i get a '7 certified' driver?
If the problem is only with this new router then you might want to make sure you are using the correct security and encryption which is WPA2 with AES encryption.
I was using WPA-PSK/WPA2-PSK ; AES, then I tried unsecured and now im back to AES.
Now, you mentioned, a software could be causing the problem. I think that may be the case. Right now I am, using my desktop, playing a movie via remote desktop, from the laptop. No other programs are running on the laptop and there has been no jam for the past 20 minutes. I closed remote desktop, and tried reopening and it is still working. During problem times, the remote desktop usually looses connection pretty often.
I think the problem program is uTorrent. My ISP offers unlimited transfers between 0200-0800 and i have set up uTorrent to transfer only during this period. It is during this time that the freezes mostly occur, after u torrent has run for about 8-20 minutes.
After you mentioned the chance of a software, I googled 'utorrent freezes network' and the like, and found that when u torrent exceeds a certain number of connections, some routers tend to lock up. I don't know whether this is what im experiencing, since my router doesn't freeze, only the laptop-router link freezes, as I mentioned earlier with the desktop and phone.
I kept remote desktop open for about 20 min, with utorrent running, but not transferring, and no jam. Now I have to wait till 0200 to try anything else.