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Author Topic: 300mbps  (Read 30072 times)

xmetal

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300mbps
« on: November 03, 2008, 06:12:48 PM »
Since the "300Mbps connection requirements" thread is locked, I guess I'll start a new one here.

I have an Intel WiFi Link 5100AGN, which claimed that it's capable of 300Mbps, but the best that I've been able to obtained with the DIR-825 is 150Mbps.  Intel claimed that the 5100AGN can do channel bonding (40Mhz channel width) at 5GHz - contrary to what's posted on the "300Mbps connection requirements" thread. So what gives? Is there compatibility issues between Intel and DLink other than the wide channel feature? Both ends have wide channel enabled. If I disable wide channel on the 825, then the connection drops to 75Mbps?

Has anyone have success with getting 300Mbps with the Intel 5100AGN and any DLink routers?

Thanks.
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jrouss

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Re: 300mbps
« Reply #1 on: November 04, 2008, 04:23:33 PM »
Not me. I am getting the same as you.
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Wal_

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Re: 300mbps
« Reply #2 on: November 05, 2008, 05:17:38 PM »
interesting.

I've recently done testing with the DIR-825.

Locked to "N" only WPA2 AES Channel bonding set to 40 coupled with the DWA-160.

I have had no problem with windows telling me that I have a 300mbps connection.

it is possible that your environment is interfering with your link. I strongly believe this is the case however...

the issue may reside in the Intel WiFi Link 5100AGN. Have you tried any other N adapter?
« Last Edit: November 05, 2008, 05:44:54 PM by Wal_ »
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xmetal

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Re: 300mbps
« Reply #3 on: November 05, 2008, 10:06:30 PM »
Wal,

Thanks for the insight.  Unfortunately, the Intel WiFi Link 5100AGN is the only N adapter that I have at the moment as it is the default card built into my laptop.  I did, however got confirmation from Intel's tech support stating that the 5100AGN does support channel bonding, but only at 5GHz.

I did a bit more tinkering and found that the speed reported by Windows' Wireless Network Connection Status is not very consistent with what's reported on DLink's Wireless Status tool. For example, Windows would report 135Mbps when DLink would report 162Mbps. Perhaps, it's a Windows Vista bug or Intel's drivers bug.  I don't think my environment is interferring with my link because when I put my laptop right next to the router (100% signal strength), DLink is telling me that I have a 270Mbps connection on 40MHz channel width using 2 channels. However, Windows tells me that I'm maxed out at 150Mbps.

It looks like I might have to dig some more with the Intel folks.
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Wal_

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Re: 300mbps
« Reply #4 on: November 06, 2008, 06:03:25 PM »
Quote from: xmetal on November 05, 2008, 10:06:30 PM
Wal,

Thanks for the insight.  Unfortunately, the Intel WiFi Link 5100AGN is the only N adapter that I have at the moment as it is the default card built into my laptop.  I did, however got confirmation from Intel's tech support stating that the 5100AGN does support channel bonding, but only at 5GHz.

I did a bit more tinkering and found that the speed reported by Windows' Wireless Network Connection Status is not very consistent with what's reported on DLink's Wireless Status tool. For example, Windows would report 135Mbps when DLink would report 162Mbps. Perhaps, it's a Windows Vista bug or Intel's drivers bug.  I don't think my environment is interferring with my link because when I put my laptop right next to the router (100% signal strength), DLink is telling me that I have a 270Mbps connection on 40MHz channel width using 2 channels. However, Windows tells me that I'm maxed out at 150Mbps.

It looks like I might have to dig some more with the Intel folks.

I see. It does depend HEAVILY on the vendor of the wireless chipset inside your Intel WiFi Link 5100AGN. If you know the vendor, i MAY be able to assist you further.
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xmetal

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Re: 300mbps
« Reply #5 on: November 06, 2008, 09:48:48 PM »
I'm not sure what you mean by the "vendor of the wireless chipset inside the WiFi Link 5100AGN". The Intel WiFi Link 5100AGN is the wireless chipset inside my Sony VAIO VGN-FW190 laptop. It's part of the Centrino2 chipset.
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Lycan

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Re: 300mbps
« Reply #6 on: November 24, 2008, 03:48:16 PM »
Are there 802.11b/G signals in your area? Also what firmware version are you running on the router?

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xmetal

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Re: 300mbps
« Reply #7 on: November 24, 2008, 07:00:22 PM »
I'm using firmware v1.01. There are other 802.11b/g signals in my area, but who doesn't these days  :)  I've tried both the b/g band (2.4GHz) as well as the a/n band (5GHz) and neither one is giving me 300mbps tx rate.
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Lycan

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Re: 300mbps
« Reply #8 on: November 25, 2008, 12:26:14 PM »
The firmware on that unit is "friendly neighbor" that means if it see's 802.11b/g broadcasts then the AP will not do channel bonding on the 40mhz range.

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DanTana

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Re: 300mbps
« Reply #9 on: December 18, 2008, 07:50:59 AM »
I set my 5300 Intel A/B/G/N card to Enable N and Auto which I assume is 40 mhz when available and not 20 mhz in the card properties and set my 655 to N only in it's configuration. It worked for me but the 825 might be different and I'm totally unfamiliar with this "neighbor friendly" firmware. I'd like to get more information on that and which version firmware is "Neighbor Friendly" and which ones are not.

Thanks,
Dan
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Wal_

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Re: 300mbps
« Reply #10 on: December 18, 2008, 10:10:32 AM »
SmallNetBuilder recently published a very informative article regarding N speed/connectivity.

Take a look:

http://www.smallnetbuilder.com/content/view/30664/228/
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Twerthi

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Re: 300mbps
« Reply #11 on: January 05, 2009, 03:59:23 PM »
The article talks about using b/g clients on your N network will cause it to slow down, does this still apply if you have b/g on the 2.4ghz and n on 5ghz?  Using the DIR-825, I've separated my b/g network on to the 2.4ghz band and have my n network on 5ghz, will it still slow down?

I'm currently seeing a max of 81 (according to router) for my N device, but I haven't played around with it too much, I'll try forcing WPA2/AES tonight.
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arod

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Re: 300mbps
« Reply #12 on: January 06, 2009, 10:08:34 AM »
No it shouldn't slow down if you keep your N clients on the 5Ghz band.
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Twerthi

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Re: 300mbps
« Reply #13 on: January 07, 2009, 12:08:03 PM »
I thought as much, thank you for the clarification.
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Twerthi

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Re: 300mbps
« Reply #14 on: January 07, 2009, 04:19:40 PM »
Quote from: Twerthi on January 05, 2009, 03:59:23 PM

I'm currently seeing a max of 81 (according to router) for my N device, but I haven't played around with it too much, I'll try forcing WPA2/AES tonight.

Tried forcing the WPA2/AES with no change in mbps reported by the DIR-825.  Granted both devices are not DLink devices (Linksys WGA600N), I still get barely above G speeds, much less than the 150 I'd expect (from what I understand the 300 can only be achieved by having both devices be DLink).
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