Wireless Connection Problem

So, it seems I'm having a problem connecting to the internet and it just won't go away.

I have a Linksys BEFE11S4 router which I've used for more than a year with no problems. I recently moved to a new apartment complex and had yet to have my Comcast High Speed Internet hooked up. There were many Wireless signals to use and I connected to a Belkin router. Later, I hooked my own Linksys router up and the problem I'm about to describe continued.

 

Anyway, while on this network, I noticed my Dell laptop (with built in Truemobile 1150 Wireless Card) was losing the signal, then reconnecting. This process took maybe 20 seconds maximum. I assumed it was the network's fault and thought nothing of it. The disconnection and reconnection process occurred maybe 5 times in two days.

Later, when I began using my own network, it continued, as I mentioned before. So, the problem hadn't been the Belkin. I started playing with the router itself and the disconnections seemed to stop for maybe 12 hours. Then, I had 5 in about an hour while I was away from the computer.

Now, I thought of it being a cordless phone or other signal interfering, but that wouldn't matter when I first connected to the Belkin network, since God knows where that router was located. I thought downloading a new driver for the Truemobile might help, so I did. All went fine, but the problem still exists. I also updated the firmware for the router and talked to Dell support on the phone maybe 5 times. We've gone through so many attempts and, since the problem doesn't happen on demand, I'd wait a day or two and see what happened. Every time, the problem was there.

Finally, I was sent a refurbished wireless card as a last resort. Still, the problem remains! WHAT ELSE IS THERE?

 

I've been watching my AOL Instant Messanger program because it tracks when I get signed off. As such, I can see how many times the problem occurs. It has also happened while I was on the computer, but mostly when idle. Power management and hibernation settings are okay. Also, I've had other laptops use the wireless network with no problem.

 

It's odd how this problem came out of nowhere since my laptop was fine prior to my move, but these things can happen, I guess. I am supposed to call Dell back if the problem was still there after the card switch, I just figured I'd try on here first.

 

Thanks for the help!