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At my house I use a Mac, as do my kids, and we have an Airport Extreme that we use with many airport expresses throughout the house for Internet and music streaming. However, sometimes the network will slow down to a crawl, music will cut out, and sometimes our Internet will just keel over and die until we reboot the network.

My son is tech-savy as well, and he thinks That there may be another network intersecting with ours and thereby occasionally "jamming" it. Normally his theories are false, and I eventually find a solution that works on my own. However this time, I can't figure it out, so my question is: is there something to my son's theory? If so, what are my options? If not, what can I do?

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Have you tried switching to a different channel? Do you see your neighbors' wireless networks in the network list? How many are there? What channels are they on? –  Daniel Beck Jan 25 '12 at 23:21

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As noted by @Daniel Beck, a channel conflict is often an issue. This app iStumbler can give you info on nearby access points. Often the issue is that the AP is set to auto select a channel and so nearby APs may change channel from time to time. I would run this app in several areas of the house on several days (especillay when you have an issue) and see if there is a conflict. Then set your AP to use only one channel that is typically unused. This has fixed a similar issue for me on several occasions.

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Channels overlap. Sometimes it's still difficult to find a good channel. –  Daniel Beck Jan 27 '12 at 20:34

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