Solved

How to force Windows 7 to use 802.11n in preference to 802.11g.

Posted on 2010-09-03
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Last Modified: 2013-12-09
So I just bought this router: http://www.newegg.com/Product/Product.aspx?Item=N82E16833162031
My laptop has a Intel WiFi Link 4965AGN
My laptop is running Windows 7

I have installed the latest version of DD-WRT that it supports.
I setup a wireless network in the N-Only mode to test my laptop with it.
Laptop connected and showed a rate of 130mbps (not the best.. but I can live with it)
Then I switched the router to mode NG-Mixed so that older clients on my network could connect to G, and my laptop could connect to N.
My laptop connects, but the rate is only 54mbps.

So how do I get my laptop to connect to the N signal instead of the G? I looked at the options in my wireless card's settings and the only mode I could actually disable was 802.11n (which seemed like a bad idea, considering what I'm trying to do here xD)

Thanks for the suggestions and advice in advance!
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Question by:eturpin
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11 Comments
 
LVL 6

Assisted Solution

by:Nuttycomputer
Nuttycomputer earned 500 total points
ID: 33597225
Make sure that WMM is enabled on both the Router and the Intel Wireless Adapter. For some reason running in mixed mode with this disabled causes the speed to drop down on N Devices.
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by:eturpin
ID: 33597309
I can't seem to find WMM anywhere in DD-WRT.. though searching on Google seems to show it being in the QOS section. Any DD-WRT experts care to chime in?
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by:eturpin
ID: 33597393
I updated my Intel driver and enabled WMM on my Windows 7 machine. The speed fluctuates from 48mbps to 54mbps now.. if only it would go up :)
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LVL 6

Assisted Solution

by:Nuttycomputer
Nuttycomputer earned 500 total points
ID: 33597524
It's under Wireless and Advanced Settings near the very bottom. I've attached an image from my setup.


Capture.PNG
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LVL 3

Author Comment

by:eturpin
ID: 33597590
I can't seem to locate WMM on the advanced settings in wireless. Here's what I see.
ddwrt.png
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LVL 6

Assisted Solution

by:Nuttycomputer
Nuttycomputer earned 500 total points
ID: 33597618
Hmm... Looks like we have different versions then ;) WMM is also a Quality setting. Does your version have a QOS section it may be hiding under?
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LVL 3

Author Comment

by:eturpin
ID: 33597655
I looked in QoS first and couldn't find it there either. I'm still tinkering around with settings though so maybe I'll find something.
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Assisted Solution

by:Nuttycomputer
Nuttycomputer earned 500 total points
ID: 33597807
Yeah the information is a little sketchy and unfortunately I don't have the version your running. I did find this but it shows it in roughly the same location:

http://www.linksysinfo.org/forums/showthread.php?t=47262

It's possible that WMM isn't supported by your router which could be why it's not in your version of the software.
0
 
LVL 3

Author Comment

by:eturpin
ID: 33599777
I switched back to the default Buffalo firmware for the router and I can confirm that it does have WMM support. Buffalo actually starting using DD-WRT for this router: http://www.buffalotech.com/press/releases/buffalo-and-dd-wrt-collaborate-to-create-the-most-comprehensive-consumer-and-small-business-wireless-offering/

So now I'm running Buffalo's version of DD-WRT. Still having the same issue though.
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LVL 3

Accepted Solution

by:
eturpin earned 0 total points
ID: 33600099
So after installing Buffalo's DD-WRT Version I am having no trouble at all! My Windows 7 laptop connects to the n signal. My older laptop connects to g. Everything is working great!

Nuttycomputer, thanks for your help, I am not very good with E-E, but I will try to award you some points for your help here in a second.
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