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Make certain you do not have mismatched channels between devices.”

Topic: Troubleshooting wireless issues:

Subtopic: Wireless channels: If connections are inconsistent, try changing the channel to another, non overlapping channel. Make certain you do not have mismatched channels between devices.”

I am looking for an interpretation of “Make certain you do not have mismatched channels between devices.” Does it mean that the client and the AP, have to be on the same channel? If yes, I thought that the laptop would scan the different channels to find out which one is associated with the SSID.
And I am also aware of two APs (access points)sharing the same SSID, would have to be on the same channel and this must be what the author is referring to when he said”Make certain you do not have mismatched channels between devices.”

Does anyone disagree?
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masnrock
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Would it be possible to see this writing?

And I am also aware of two APs (access points)sharing the same SSID, would have to be on the same channel and this must be what the author is referring to when he said”Make certain you do not have mismatched channels between devices.
Disagree. They should *not* be on the same channel (or overlapping ones for that matter). This would cause performance and interference issues.
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noci

I disagree as well. You need different channels for each AP (and possibly limit  power to not hurt each other.
 effectively 1,6 ,11  ( for 2Ghz band) are the only ones not overlapping. and getting most channels available).
others will overlap with those.
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So what is your interpretation of what the author wrote?
No clue, as there would be no need to do anything special on the device itself. It is only the AP where you have to do anything, and I've already commented on that.

What is the source of the quote?
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ASKER

The source of the quote is from "Exam Cram CompTIA Network + N10-007", sixth edition by Emmett Dulaney.
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Craig Beck
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Thank you Craig.