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Old February 6th, 2010, 03:14 PM
njfoses njfoses is offline
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Default Major Speed Difference Between 5 ghz and 2.4 ghz

Im kind of stumped here. Im using a wndr3700 along with a wnda3100 adapter on my laptop. I subsrcibe to comcasts extreme tier which is 50 mbps down and 10 mbps up. I have the 2.4 ghz and 5 ghz band enabled in the router as i have some g only pieces of equipment and both are set to upto 300 mbps and both run wpa2 aes security. The wnda3100 adapter is set to upto 300 mb as well. When i connect to the 5 ghz band my speedtests are right on the money with 53mbps down and 11mbps up with powerboost. When i connect to the 2.4ghz band i can only manage 20 mbps down. File transfer is also slow at around 2 MBps on the 2.4 band compared to 8 MBps on the 5 ghz band. Both bands connect around 243 mbps and signal strength is over 85% on both bands. I have also verified the same results on a 2nd laptop that has a wireless n card built in. I have tried various channels and results dont get any better. I thought the 2.4 band would have the same throughput as the 5 band but for me that is not the case at all? Any ideas or suggesstions are welcome!!
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Old February 6th, 2010, 03:54 PM
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

2.4Ghz and 5Ghz with just a frequency difference , 5Ghz will have less range

far as different throughput would be wireless performance but not directly with frequency. I have seen disable one band would help. try testing by disable 5Ghz and see if throughput are same or not
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Old February 6th, 2010, 05:40 PM
njfoses njfoses is offline
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

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Originally Posted by jmizoguchi View Post
2.4Ghz and 5Ghz with just a frequency difference , 5Ghz will have less range

far as different throughput would be wireless performance but not directly with frequency. I have seen disable one band would help. try testing by disable 5Ghz and see if throughput are same or not
I disabled the 5 ghz band and no difference. Any other ideas??
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Old February 6th, 2010, 05:42 PM
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

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Originally Posted by njfoses View Post
I disabled the 5 ghz band and no difference. Any other ideas??
if you live in saturated 2.4Ghz area you may getting some interference issues

http://www.metageek.net/products/inssider

see how bad it is..
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Old February 6th, 2010, 05:45 PM
njfoses njfoses is offline
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

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Originally Posted by jmizoguchi View Post
if you live in saturated 2.4Ghz area you may getting some interference issues

http://www.metageek.net/products/inssider

see how bad it is..
I dont think that is the case as i can only "see" three other routers.
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Old February 6th, 2010, 05:48 PM
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

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Originally Posted by njfoses View Post
I dont think that is the case as i can only "see" three other routers.
channel can cause the issue still look three other wireless. don't just assume the issues that it will be okay but no understanding it.
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Old February 6th, 2010, 05:56 PM
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

3 other routers can cause trouble for you ,depending on channel and signal strength
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Old February 6th, 2010, 06:17 PM
njfoses njfoses is offline
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

I went to channel 9 as nobody was on that channel and still no change. I guess im going to stick to the 5 ghz signal and not worry about it.
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Old February 7th, 2010, 01:14 AM
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

Do you understand that wireless channels on the 2.4GHz band overlap by three higher and three lower channels, so to avoid overlap the commonly used channels are 1, 6, and 11? If you go to channel 9 and there are networks on channels 6 or 11 (or both) your router can possibly see both of those channels.
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Old February 7th, 2010, 03:41 AM
njfoses njfoses is offline
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Default Re: Major Speed Difference Between 5 ghz and 2.4 ghz

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Do you understand that wireless channels on the 2.4GHz band overlap by three higher and three lower channels, so to avoid overlap the commonly used channels are 1, 6, and 11? If you go to channel 9 and there are networks on channels 6 or 11 (or both) your router can possibly see both of those channels.
Im aware. The other three routers are all on channel 1.
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