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Windows 7: Extremely Slow WLAN Speed

10 Feb 2014   #11
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

If the router isn't set to use the 802.11n Only setting then you can't get more than 54Mbps, the mixed wireless settings can really slow things down. You would also need to use WPA2 with AES encryption to achieve full wireless N speeds.

You can also try using the channel bonding feature which should show up in the routers wireless settings as 20Mhz-40Mhz, this setting can double your bandwidth.

It's possible for wireless N to achieve 450Mbps "status speed" but you need the right router and correct 3 antenna PCI NIC for this.

Besides those adjustments the signal strength etc. looks good here.


My System SpecsSystem Spec
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10 Feb 2014   #12
amsgator

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by chev65 View Post
If the router isn't set to use the 802.11n Only setting then you can't get more than 54Mbps, the mixed wireless settings can really slow things down. You would also need to use WPA2 with AES encryption to achieve full wireless N speeds.

You can also try using the channel bonding feature which should show up in the routers wireless settings as 20Mhz-40Mhz, this setting can double your bandwidth.

It's possible for wireless N to achieve 450Mbps "status speed" but you need the right router and correct 3 antenna PCI NIC for this.

Besides those adjustments the signal strength etc. looks good here.
Thanks. It looks like my router only offers mixed mode, no N only. I'll look into a new one. I am also already using the channel bonding.

If I take my two laptops to Starbucks, get on their wifi and set a unique workgroup so I'm not visible to anyone else, can I run a LAN test there? I'm just trying to figure out if I'm being limited by my cards, the router, something in my house, etc without buying and swapping things. If I can get a good speed over another Wifi network, I can eliminate my cards as the problem. This is a lot easier for me to do than borrow a friend.
My System SpecsSystem Spec
10 Feb 2014   #13
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by amsgator View Post
Quote   Quote: Originally Posted by chev65 View Post
If the router isn't set to use the 802.11n Only setting then you can't get more than 54Mbps, the mixed wireless settings can really slow things down. You would also need to use WPA2 with AES encryption to achieve full wireless N speeds.

You can also try using the channel bonding feature which should show up in the routers wireless settings as 20Mhz-40Mhz, this setting can double your bandwidth.

It's possible for wireless N to achieve 450Mbps "status speed" but you need the right router and correct 3 antenna PCI NIC for this.

Besides those adjustments the signal strength etc. looks good here.
Thanks. It looks like my router only offers mixed mode, no N only. I'll look into a new one. I am also already using the channel bonding.

If I take my two laptops to Starbucks, get on their wifi and set a unique workgroup so I'm not visible to anyone else, can I run a LAN test there? I'm just trying to figure out if I'm being limited by my cards, the router, something in my house, etc without buying and swapping things. If I can get a good speed over another Wifi network, I can eliminate my cards as the problem. This is a lot easier for me to do than borrow a friend.
If there is no N only option then you have found the source of the problem. In fact you are limiting every wireless NIC on your network to 54Mbps "status speed" unless this setting is enabled.

Maybe a firmware update would help in this regard but any router without this option would definitely cause the problems you are describing.

For connection at Starbucks just turn off Network Discovery in the Advanced Sharing settings at the Network and Sharing Center. This will prevent others from seeing your machine or accessing it. Testing at Starbucks probably won't help as they are most likely using the mixed wireless settings to accommodate the mix of clients.
My System SpecsSystem Spec
.

10 Feb 2014   #14
amsgator

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by chev65
If there is no N only option then you have found the source of the problem. In fact you are limiting every wireless NIC on your network to 54Mbps "status speed" unless this setting is enabled.

Maybe a firmware update would help in this regard but any router without this option would definitely cause the problems you are describing.

For connection at Starbucks just turn off Network Discovery in the Advanced Sharing settings at the Network and Sharing Center. This will prevent others from seeing your machine or accessing it. Testing at Starbucks probably won't help as they are most likely using the mixed wireless settings to accommodate the mix of clients.
One of the routers (actually a DSL wireless gateway) I tested previously has N only mode. I enable that and when connected I get ~20Mbps. That still seems awfully slow. Makes me wonder if something's wrong with my computers. I tried all three which seems farfetched for all three cards to be shot. They aren't dual band so maybe I'm expecting unrealistic throughput.

The original router, unfortunately, is discontinued and no longer updated so the firmware it's got is the last it'll get. Maybe it's time to get a new router.
My System SpecsSystem Spec
10 Feb 2014   #15
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by amsgator View Post
Quote   Quote: Originally Posted by chev65
If there is no N only option then you have found the source of the problem. In fact you are limiting every wireless NIC on your network to 54Mbps "status speed" unless this setting is enabled.

Maybe a firmware update would help in this regard but any router without this option would definitely cause the problems you are describing.

For connection at Starbucks just turn off Network Discovery in the Advanced Sharing settings at the Network and Sharing Center. This will prevent others from seeing your machine or accessing it. Testing at Starbucks probably won't help as they are most likely using the mixed wireless settings to accommodate the mix of clients.
One of the routers (actually a DSL wireless gateway) I tested previously has N only mode. I enable that and when connected I get ~20Mbps. That still seems awfully slow. Makes me wonder if something's wrong with my computers. I tried all three which seems farfetched for all three cards to be shot. They aren't dual band so maybe I'm expecting unrealistic throughput.

The original router, unfortunately, is discontinued and no longer updated so the firmware it's got is the last it'll get. Maybe it's time to get a new router.
That is twice as fast compared to the first router on your original post so it looks like we are getting somewhere.

I'm not completely sure what you are using to measure the WLAN speed with?

If you can post the wireless status speed it would give me a better idea of how this is working.

I might be able to help more if you could post the read out from inSSIDer rather than Xirrus.

I should add that I only get approx. 40Mbps when sending files from my Gb wired connection to my wireless AC connection which runs at 877.5Mbps "status speed" so I'd say that 20Mbps is about what you should expect for your current wireless connection.

The good thing is that your wireless connection speed has now doubled since you changed to the N only setting as was advised earlier.


Attached Images
Extremely Slow WLAN Speed-wired-wireless-41mbps.png 
My System SpecsSystem Spec
10 Feb 2014   #16
amsgator

Windows 7 Home Premium x64
 
 

I am using a program called LAN Speed Test and am also timing it with a stop watch and dividing the time it takes to transfer a file of a given size, such as 20 MB. And when I ran it when I got home this morning I was getting an upload speed of ~3Mbps and a download speed ~15Mbps. So I have no clue what's going on.

What are you needing from inSSIDer? I'm running the free one so it might not have what you're looking for. If that image is windows file transfer, how do I view the histogram?

On your picture there you are getting about 40MB/s, which is 240 Mbps (40 x 8 bits per byte). I am getting about (2.5MB/s 20Mbps/8 bits per byte).

EDIT: I have a status speed of 300Mbps on my destop and 130Mbps on my laptop.
My System SpecsSystem Spec
10 Feb 2014   #17
amsgator

Windows 7 Home Premium x64
 
 

If inSSIDer is reporting my RSSI as -35dbi, is it safe to say interference isn't an issue, or is that still a possibility?
My System SpecsSystem Spec
11 Feb 2014   #18
amsgator

Windows 7 Home Premium x64
 
 

Here is the analysis from my bedroom on my Mac laptop. Both Virus and Guest are mine.


Attached Thumbnails
Extremely Slow WLAN Speed-networks.png  
Attached Images
Extremely Slow WLAN Speed-network-map.png 
My System SpecsSystem Spec
11 Feb 2014   #19
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by amsgator View Post
I am using a program called LAN Speed Test and am also timing it with a stop watch and dividing the time it takes to transfer a file of a given size, such as 20 MB. And when I ran it when I got home this morning I was getting an upload speed of ~3Mbps and a download speed ~15Mbps. So I have no clue what's going on.

What are you needing from inSSIDer? I'm running the free one so it might not have what you're looking for. If that image is windows file transfer, how do I view the histogram?

On your picture there you are getting about 40MB/s, which is 240 Mbps (40 x 8 bits per byte). I am getting about (2.5MB/s 20Mbps/8 bits per byte).

EDIT: I have a status speed of 300Mbps on my destop and 130Mbps on my laptop.

With those status speeds I'd say you are good as it will get for both of those devices. You are now getting exactly what you should be. Both of those devices are maxed out and doing exactly what they were designed for.

If you really want faster wireless then the only option is to upgrade everything to the newer wireless AC, that means the router and all the wireless NIC's would need to be updated as well "not cheap".

That is what I was using for my example,> Gb wired connection to wireless AC working at 877.5Mbps so of course it's going to be about twice as fast compared to wireless N.

You are showing exactly what you should be for a standard wireless network, no more, no less. There is no fix because nothing is broken besides the original problem with that old router which you have wisely changed out.
My System SpecsSystem Spec
14 Feb 2014   #20
amsgator

Windows 7 Home Premium x64
 
 

I think there's some confusion about the speed I am getting. I am getting about 15-20 megabits per second, not megabytes per second.

In the image you posted you are getting about 42 megabytes per second which is about 20 times, not twice,the speed I am getting. While I understand you're is going to be faster with the AC, 2 megabytes per second, if I'm lucky, is insanely low. I've googled around and other threads/forums are indicating that 10 megabytes per second is slow for N speeds, and I'm getting about 1/5 of that.

If 2 MB/s is what wireless N speeds are supposed to be then I guess I'm about to get in my attic and wire my entire house with Cat5e or Cat6 cable.
My System SpecsSystem Spec
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 Extremely Slow WLAN Speed




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