I've got a Windows 7 laptop with a built in Wireless N card. It won't connect faster than 130Mbps (even right next to the router) and I'm pretty sure that means it's only connecting using 20MHz channel width. Is there any way to enforce a 40MHz channel width in Windows 7 (or find out what the channel width it's using is)?

HP support is useless. And I'm new to Windows 7. I don't see any channel information in the wireless settings.

Intel's website says the wireless card supports 300Mbps (Intel WiFi Link 5100 AGN) using 40 MHz channel width and so does my router (DLink DIR-655).

11/20/2009 8:34:45 PM

go into the device settings in device manager and look at the settings in the advanced tab to see if theres something set wrong.

11/20/2009 8:49:05 PM

You fucking rock. Why the hell couldn't I find that on the internet? It was set to force 20MHz channel width (even though the router was set to force 40MHz).

17 megabytes per second file copy now versus the 6 or so I got before. I assume that's about as fast as the laptop's hard drive can write, so I couldn't expect any faster than that.

[Edited on November 20, 2009 at 8:59 PM. Reason : ]

11/20/2009 8:53:21 PM

i wonder why that would have been hard set on your NIC

11/20/2009 9:13:55 PM