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Old August 7th, 2009, 01:26 AM
si77 si77 is offline
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Default WNR2000 Slow on wireless mode 145Mbps

Hello

I'm on cable Virgin 10MB. I did have the standard router that Virgin supply. Worked fine, great speeds.

I decided to "upgrade" my router to the WNR2000. Worked fine out of the box, until I bumped up the wireless mode from 'Up to 54Mbps' to 'Up to 145Mbps'. Since then I get poor internet speeds, cannot perform a speed test, cannot even watch a YouTube video.

I've tried changing the security settings, even switching it off. I've altered the DNS to 4.2.2.1 and 4.2.2.2.

In the end I just switch back to 54Mbps and speeds are great again, but defeats the object of the "upgrade".

I'm on a new iMac, Windows 7 laptop and both have the same results.

Can anyone, please, provide any suggestions what might be causing this?

Thanks
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Old August 7th, 2009, 01:43 AM
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Mars Mug Mars Mug is offline
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Default Re: WNR2000 Slow on wireless mode 145Mbps

Are you using a compatible client adaptor in the PC? What is it?
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Old August 7th, 2009, 02:12 AM
si77 si77 is offline
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Default Re: WNR2000 Slow on wireless mode 145Mbps

Admittedly, my laptop only has an 'Atheros AR5005G' (which I'm wary of), but my iMac has a Airport Extreme, which is capable of 802.11n.
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Old August 7th, 2009, 02:54 AM
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Default Re: WNR2000 Slow on wireless mode 145Mbps

As far as I am aware the 145Mbps rate doesnít need to use 40MHz channel bonding of two channels, so you should be able to change the wireless channel of the router, try channels 1, 6, or 11 to see if thereís any improvement.

You could also try turning off the router SPI to see if that helps (WAN Settings).
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Old August 7th, 2009, 03:24 AM
si77 si77 is offline
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Default Re: WNR2000 Slow on wireless mode 145Mbps

Sorry, I forgot to mention I've already tried switching off the SPI Firewall.

I tried your suggestion, of channels 1, 6 and 11. I keep going to YouTube to try and watch a video (just using it as a good test, always selecting a new video), and each channel hardly played a video on 145Mbps. Switched it back to 54Mbps and played a new no problem (in HD as well!).

My iMac clearly says it's 802.11n compatable, but is there anyway to prove it? In fact, I've attached a screen shot.



Thanks for your help though!
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Old August 7th, 2009, 03:30 AM
si77 si77 is offline
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Default Re: WNR2000 Slow on wireless mode 145Mbps

And when I bump it up to 145Mbps

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Old August 7th, 2009, 03:55 AM
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Default Re: WNR2000 Slow on wireless mode 145Mbps

I was going to suggest that you download Netstumbler but Iím not sure if thereís a MAC version, but I expect thereís something similar. With Netstumbler you could monitor and plot your wireless connection to see if the throughput is taking a hit at any time, Iím guessing that it must be pretty erratic to cause the problems you describe.
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Old August 7th, 2009, 04:37 AM
si77 si77 is offline
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Default Re: WNR2000 Slow on wireless mode 145Mbps

I'm not sure if this is what you mean, but I downloaded iStumbler. At both 54 and 145 it reported roughly the same figures if Signal Strength at 70% and Noise at about 13%.
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Old August 7th, 2009, 06:22 AM
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Default Re: WNR2000 Slow on wireless mode 145Mbps

Quote:
Originally Posted by si77 View Post
I'm not sure if this is what you mean, but I downloaded iStumbler. At both 54 and 145 it reported roughly the same figures if Signal Strength at 70% and Noise at about 13%.
I have Mac but on xtreme airport w/ up to 54Mbps so I can not test with my WNR2000 but seems like this could be compatible issues.

145Mbps are 802.11N standard to be most compatible with adapters. On the other hand 300Mbps are part of 802.11N protocol. Industry made 145Mbps for basic compatible speed.

seems you may need to look other avenue. also N mode uses

http://en.wikipedia.org/wiki/802.11n
Quote:
Channel Bonding, also known as 40 MHz, is a second technology incorporated into 802.11n which can simultaneously use two separate non-overlapping channels to transmit data. Channel bonding increases the amount of data that can be transmitted. 40 MHz mode of operation uses 2 adjacent 20 MHz bands. This allows direct doubling of the PHY data rate from a single 20 MHz channel. (Note however that the MAC and user level throughput will not double.)
Coupling MIMO architecture with wider bandwidth channels offers the opportunity of creating very powerful yet cost-effective approaches for increasing the physical transfer rate
20Mhz and 40Mhz, channel bonding issue are common for general issues
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Old August 7th, 2009, 06:48 AM
si77 si77 is offline
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Default Re: WNR2000 Slow on wireless mode 145Mbps

Thanks for that. You prompted me to try out the 300Mbps setting, and guess what, it worked fine! Mac playing YouTube vids fine, internet working well, in fact typing this email while on the '300Mbps' setting.

I've only been trying to use the 145Mbps as the Netgear Control Panel states that:

The default is "Up to 145Mbps", which allows all 11b and 11g and 11n wireless stations.

And as I have other devices in the house that I knew had old wireless cards that didn't support 11n (laptop, music streamer) I assumed I would have to only use the 145 setting. Seems I have misunderstood. Just tested all devices and they're working fine. AND, just to make sure I wasn't going crazy, just tested the 145 again and everything dropped out. So bumped it back up to 300.

Just noticed that although router on 300Mbps, Mac reporting a connection of 145 and Laptop reporting 54.

I fear I have misunderstood. Sorry for wasting anyone's time!
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