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Topic # 23023 15-Jun-2008 20:34
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It seems that my laptop wifi connection is much slower than I would expect.  Is it normal or not, and are there are any ways to speed up?

windows task manager shows the wifi connected at 54Mps, but activity is rarely above 3%.  Even when 12" from the router and no slower when 3 rooms away.  If I plug in 100bT cable the speed rockets upto 68% of 100Mpbs.  This is confirmed by the time taken to open large files.  So it isn't a limit in the router, but something with wifi between the router and laptop.  Router is WAG54G.

I'm doing the test by downloading from a network hard disk, not from the internet.  So ADSL speed is not relevant.

I've found the wifi driver settings, Broadcom chipset, and the few parameters of relevance do not make any difference to speed.  e.g. confirmed running in 'g' mode.

Googling on the topic has not come up with any relevant articles unfortunately, but that may be because it's not easy to hone in on this problem when looking for wifi speed.

any comments on what I ought to be expecting would be useful.  Plus any tips on if I can make an improvement.

Thanks in advance.

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  Reply # 138248 15-Jun-2008 20:54
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Typical speeds for 802.11g are anywhere up to around 10Mbps - sometimes a lot less. Certainly don't expect anything near 54Mbps. You haven't really given an indication of the speed you are getting but I'm not sure if you do actually have a problem.

There are plenty of factors that can make things slower. One of the main problems can be nearby WiFi networks, particularly if they are running on the same channel. Try changing the channel on your router or selecting Auto (which should hopefully avoid it conflicting with any other nearby routers) and see if it makes any difference.



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  Reply # 138251 15-Jun-2008 21:03
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Hi,
You may well be right that there is nothing actually wrong.  I don't have any comparative experience other than a direct LAN connection and am somewhat disappointed that the claimed 54Mps capability is nowhere near being achieve.  3% of 54Mps suggests about 1.5Mps.  It's so much slower than LAN cable that I'm wondering if there is a way of making an improvement.

I've tried changing channels, but there are no other networks visible, so suspect that isn't an issue.

going through Linksys website at the mo' for tips there.

cheers.

 
 
 
 


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Reply # 138255 15-Jun-2008 21:39
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Even if you can't see a network they may be hiding their SSID, still using the band.

It is also possible interfernce caused by microwave ovens, 2.4 GHz cordless phones.

If your router is on a desk, move it to a mid-heigh position on your wall. Also anything will reduce performance: doors, walls, windows.





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  Reply # 138506 16-Jun-2008 18:41
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There's a free program called QCheck which measures throughput between pc's on a network.

I have a 802.11g wireless router servicing 3 laptops, a d-link wireless media player and a wired pc.

Installing Qcheck on the 3 laptops and the pc showed a consistent 25Mb/s from each laptop to the pc. From pc to the laptop and between laptops was around 18/19 Mb/s.

Also as mentioned prior, nearby networks on the same channel, walls, doors, microwaves, cordless phones can all have an effect.

I noticed with my own tests, changing the channel has an effect on the bandwidth also just by itself.

Cant remember exactly but apparently WPA encryption has a marked effect on the bandwidth. I use WPA but doesnt affect my bandwidth.

My 2 cents!




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  Reply # 138649 17-Jun-2008 10:35
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Try changing from b/g to g only or g+
I get twice the throughput on g+.

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