This discussion is archived

## Airport Express--How many is too many?

1760 Views 6 Replies Latest reply: Jul 29, 2008 7:31 AM by frankiec
Calculating status...
Currently Being Moderated
Jul 19, 2008 6:43 PM
I am running a new Airport Extreme base station with 3 Airport Express units to extend the range over about a 6200 sq ft house. My wife set up her office at the far extreme from the base station and, although her signal was somewhat intermittent, it worked well enough to allow her to connect to the internet with adequate functionality (although her signal strength was generally at or below 5 Mbps). After I successfully installed a 4th Express using Airport Utility, and located it in her office, her PC connectivity to the network suffered, and a printer connected to the Express in her office was not recognized on the network and wouldn't print. Do I have too many Expresses on the base station such that the signal is degrading performance for the whole network? Thanks.
Mac Book Pro, Mac OS X (10.5.4), 2 Classics, Apple TV, 2 Nanos, 1 5G Ipod, 1G Iphone, Touch, Powerbook, Macbook
• Level 10 (117,955 points)
Currently Being Moderated
Jul 19, 2008 8:28 PM (in response to Michael Kozlowski)
When using 802.11g's WDS setting each link cuts the RF bandwidth in half.

With 3 AirPort Express (AX) you have 2 WDS links which means your maximum RF bandwidth is 1/(2*2) = 1/4 of 54 Mbps or 13.5 Mbps.

With 4 AX you have 3 WDS links which means your maximum RF bandwidth is 1/(222) = 1/8 of 54 Mbps or 6.75 Mbps.
iMac Alu C2D 2.4 GHz 24" 4GB and 20" 2GB, Mac OS X (10.5.4), iBook G4 14" 1.42 [1.5GB],iBook 466 SE Graphite [576M-40GB],iMac G4 700/768MB
• Level 1 (0 points)
Currently Being Moderated
Jul 21, 2008 7:57 AM (in response to Duane)
If I use an airport extreme as base station, a airport express a relay and one additional airport express as remote, would my bandwith be reduced? If so by how much?

Assume all are set up as 802.11g and 802.11n.

Thanks
MBA, Mac OS X (10.5.3)
• Level 10 (117,955 points)
Currently Being Moderated
Jul 21, 2008 8:06 AM (in response to limps)
Operating in 802.11g's WDS, the bandwidth would be reduced 1/(2*2) = 1/4.
iMac Alu C2D 2.4 GHz 24" 4GB and 20" 2GB, Mac OS X (10.5.4), iBook G4 14" 1.42 [1.5GB],iBook 466 SE Graphite [576M-40GB],iMac G4 700/768MB
• Calculating status...
Currently Being Moderated
Jul 28, 2008 11:57 AM (in response to Duane)
If using the "Extend" option instead of a WDS with all the stations being of band type "n", is there a limit to how many Express "n" I can use to extend an Extreme "n".

I currently have one Express "n" extending (not WDS) my Extreme "n", and I would like to add one more. Is there a limit to how many can be used to extend the wireless network wirelessly?

Thanks,

Frank
Dell Inspiron 1720, Windows Vista
• Level 10 (117,955 points)
Currently Being Moderated
Jul 29, 2008 7:02 AM (in response to frankiec)
I'm sure that there is a limit but 2 wouldn't be a problem.
iMac Alu C2D 2.4 GHz 24" 4GB and 20" 2GB, Mac OS X (10.5.4), iBook G4 14" 1.42 [1.5GB],iBook 466 SE Graphite [576M-40GB],iMac G4 700/768MB
• Level 1 (10 points)
Currently Being Moderated
Jul 29, 2008 7:31 AM (in response to Duane)
Duane,

Thank you very much.

Frank
Dell Inspiron 1720, Windows Vista

#### More Like This

• Retrieving data ...

#### Legend

• This solved my question - 10 points
• This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.