R2: Wifi drops in and out

My wifi worked fine from when I got the laptop in december until about late march where all of a sudden, I'll be surfing the web and my wifi will just drop out. The little icon in the corner will say i still have 4 bars but web pages wont load. I'll then have to disconnect from my wireless connection and then reconnect where I'll have about 5-10 minutes before it happens again. I don't think its my router because my brother's laptop and my mother's iPad both work fine on the same connection.

Again, this only recently started happening, and I was wondering what might be causing it or how to fix it.

I also tried the "uncheck 'allow the computer to turn off this device to save power" trick and it didn't help.

 

does no one know what might be wrong?

 

First, download inSSIDer and do a survey of all the wifi networks in your area. Pick a channel that's hopefully not being used, 1, 6, and 11 being the optimal ones to start with.

Second, try adding a static IP for your wifi card in your routers DHCP settings.