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Airport extreme intermittent lag issues

I have an airport extreme router.  There is lag that occurs in brief spikes lasting perhaps a second every thirty seconds to a minute on fairly regular intervals.  I do not know what causes this. The problem apparently is not with my workstation as it did not suffer these problems when it was on another network.  It appears to not happen when plugged in either.  There is not a lot of network crosstalk in this area.
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UnderSeven
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UnderSeven
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1 Solution
 
robertcernyCommented:
Download a sniffer for example iStumbler http://www.istumbler.net and check which channel is occupied least. Reconfigure your router to use that channel
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UnderSevenAuthor Commented:
Will give this a try and come back with results.  Thanks
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UnderSevenAuthor Commented:
So I did this and found that in fact I am the only one using the channel I am on. This doesn't appear to be the cause.
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UnderSevenAuthor Commented:
Something else I noticed, my router is listed twice, using two different channels, both channels it is the only one using in the area, but the second listing seemingly using the same tech is also a different signal strength.
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strungCommented:
Are you sure both listings are your router? If you are using the default SSID, one might be a neighbour's router. Change your SSID to something unique to you.
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UnderSevenAuthor Commented:
The name is unique.  This router I have read does some sort of dual channel for transmitting in two different stream speeds, I expeect that is what I am seeing.  I already tried to turn this feature off to see that if fixed the problem and it did not.  Also I find the signal strength very surprisingly low.  around 50% or less.  This is for a router literally a room away, within 20 feet of the device sniffing it.
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strungCommented:
Which two channels is it using?

If one of them is on the 5.1GHz band, that will drop in signal strength much more quickly than the 2.4 GHz band.

Also check the console logs to see what activity it shows when you have the slowdown.  You could check Activity Monitor to see what it shows.

Is there anything in the vicinity that might cause interference -- a cordless telephone, for instance?
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UnderSevenAuthor Commented:
channel 1 and 149.

The only other electronic device it is next to is the modem which provides access to the internet.  I could try moving the two apart.  I'm not sure what logging capability this router has, but I'll look into that and post back results.
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UnderSevenAuthor Commented:
This router seems to lack logging support
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strungCommented:
The older version of Airport Utility allowed you to access the logs under the Advanced Tab. This disappeared with ver. 6, of the utility, but I believe you can download ver. 5.6 here:


http://support.apple.com/kb/dl1482

and it should allow you to access the logs.
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UnderSevenAuthor Commented:
Thank you, log access has helped me work with this router.
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