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Some questions about 802.11 g and n connectivity

Hello all, I recently purchased an Airport Extreme Dual Band 802.11 a/b/g/n router to replace an old Linksys 802.11 b/g one. Some of the devices in my house support both 2.4 and 5 GHz 802.11n, some just 2.4 GHz 802.11n, and some just 802.11g (mainly an often used PS3 and an old, rarely used dell Laptop running XP). I have read that running the 802.11g devices along with the 802.11n devices will cause a noticeable slowdown on the 2.4 GHz channel, but that usually the 802.11n devices will automatically move to the 5 GHz channel to avoid the slowdown. However, as I mentioned, some devices do not support the 5 GHz channel, and would be subject to the slowdown. Additionally, I have read that the 2.4 GHz channel has better range that the 5 GHz one, which is important to me (as some of the 2.4 and 5 GHz compatible devices will be used farther away from the access point while the 802.11g devices are connected)

I have a few questions regarding this:

1) Is everything I mentioned above correct? (about the slowdowns, range, ect.)

2) Is the slowdown, if existent (or noticeable, see next question), only present when 802.11g devices are on and connected? (this one is just out of curiosity)

3) If there is a slowdown, is it even noticeable? I have tested my internet speeds on, and have never received any results above 30 Mbits/s. I know that 802.11g supports up to ~54Mbits/s, and I don't do much LAN work to need the extra speed. Is the fact that my internet speed is slower than the 802.11g maximum make the speed drop caused by connecting 802.11g devices irrelevant?

4) In the event it does not, I still have the old router, and read that I could attach it to the new router, and then set that up as an access point for the 802.11g routers only. I assume that I would need to adjust the channels on the two routers for the 2.4 GHz bands to avoid interference? Would the internet/bandwidth that the second router "takes away" from the first one cause any slowdown?


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All Answers

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Minor Edit

In reply to: Some questions about 802.11 g and n connectivity

Oops, I accidentally said AirPort Extreme. I meant to say AirPort Express.

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Some questions about 802.11 g and n connectivity

In reply to: Some questions about 802.11 g and n connectivity

There won't be any noticeable slowdowns in browsing or downloading speeds.
You can increase the channel from AUTO to 11 and then should resolve the
issue if you face.

You can change the Link Speed and the Duplex Settings of the Wireless and
Network Cards to get a better performance.

You can also follow the article for further information -

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