I have upto two computers hooked up wirelessly to a router. The router is a belkin G router. My setup is like this: One computer is upstairs in a separate room from where the router is. It is a desktop that has a belkin wireless adapter. The other computer is a laptop that is downstairs that has an internal wifi card. Problem is that randomly the wireless connection gets DROPPED. The way I connect again is to unplug the modem and the router, and reconnect after 10 seconds. I havent noticed this happening on the upstairs computer. So I THOUGHT that maybe the walls of the house or the different levels (upstairs vs downstairs) were what was affecting connectivity, but if it was, wouldnt it prevent the downstairs laptop from connecting in the first place?

I changed the channels that the router was broadcasting on, but the problem still persists. Im wondering, could the G rating on the router be causing this, that maybe a G router doesnt have a big enough range? Would using an N router work better? The distance from the upstairs router to the downstairs laptop is maybe 20 feet at the most so Im guessing a G router should work, but Im not sure. Please help!!!!!!!!!!!!! If you have good signal strength, there is not much you can do. All wireless routers of the current 802.11  standard for consumer use are subject to drop outs. Even expensive commercial units for business can not prevent lost connections.
What I am trying to tell use is that the hype about new N standards routers is just vendors hoping you will buy new equipment. Of course, there is the question of QUALITY. There is no prof that type N routers are better made that the earlier models.

I have a good connection here in my house. It took awhile to find the right mix of makes and models that worked well. All three of my routers in my home system are the type g and they are doing fine. Yet once in awhile a connection is lost.
One router is in another  home inside of a closet. It also sends enough energy some through the wood walls and some 80 feet outdoes and into a motor home with metal siding. My nephew gets good enough connection that he downloads videos of the the INTERNET. This should be impossible. The 2.5 Ghz can not penetrate metal siding. So they tell me.
My three routers serve three households using one internet connection.

There is some great stuff coming soon, but with current market conditions the vendors are slow to bring in the new stuff. Part of the issue is also a matter of policy and economics.
My recommendation is to not buy a N router just because it says N. Actually, the N standard flies in the face of good design principles. Don't get me started on that.