What is the operating system that you are
using in the Laptop?
If its a Vista you will face this kind of
problem with the router, since its a one of
the oldest Model.
If You are using Vista OS i would suggest you
to go for a G standard wireless Router.
If You are using Win Xp, I would suggest you
to Upgrade the Firmware for the Router and
once u upgrade the router firmware reset the
router for 2 min and reconfigure the router
which will fix the Issue.
Login to the user interface of the router,
Under the administration tab you can find the
Option to upgrade the firmware.
If you face the same problem still with the
router, i would suggest you to check the
laptop in a Hot spot and check you are
getting disconnected from the wireless.
If you get disconnected, i would suggest you
to upgrade the drivers for the wireless card
in the laptop.
If you want to get a good speed in the
wireless network, instead of the B standard
you can use G or N standard router which are
available in the Market.
Thanks & Regards,