Is your Wireless dropping? Update your driver of course and then try changing your Scan Valid Interval. By default, most wireless cards are set to 60. This is the amount of time before your wireless ‘looks’ for other access points (for roaming). Try changing the interval to 120.
Open the device manager, double click on the wireless adapter, under advanced, click on Scan Valid Interval – change this to 120. If you have a card that has roaming under advanced, select the lowest option.
Note: If you have a laptop and are moving around in an area, you may need to lower this number.
Also, you may want to lower the Beacon Interval in your router if your signal is low or if you have drops. This sends beacons more frequently and can help with your signal. This may slightly decrease your bandwidth (wireless) and use a little extra battery on mobile devices.
While the default is 100, did you know if you increase this time (assuming you have a great signal in your home or business) that you can increase wireless bandwidth (slightly) and even increase your battery life of devices?
Got Atheros? Follow this link to drivers.
Also, do a quick survey of your entire home. As you can see, one side of our house has interference on channel 11. Because the ‘user’ of the other wireless is using Channel 6 + 10 (40 mhz ) spread, Channel 6 and 11 are NOT optimal. Therefore, channel 1 is the optimal channel (you can see two devices – my AP and printer)
Left – host computer Right – TightVNC into another computer in my home.
Remember, router position and direction matters. As you can see below, repositioning the router got rid of “Saw Tooth” (signal that goes up and down).