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My network is amazing slow, and my question is what can I do about it.

I have done the following analysis:

Transfer from MacBookPro -> Router -> Mac Mini Intel Core 1 264,3 MB = 2114, MBit in 432 seconds. == 4,89 MBPS

Transfer from MacBookPro -> Mac Mini Intel Core 1 (Direct network) 264,3 MB = 2114, MBit in 295 seconds. == 7,16 MBPS

Transfer from MacBookPro -> Router -> MacBook Air 90,2 MB = 721,6 MBit in 147 seconds. == 4,90 MBPS

All connections via WLAN: 54 MBit/s, WPA2, WMM, autochannel. Router is a FRITZ!Box WLAN 3170

So, the router sucks a bit performance, thats OK. Anyway as the router shows me that all clients are connected with 54 MBit/s, shouldn't the transfer time less? What can I do/check to increase my networks speed?

Christian

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The single most effective speed boost you can get is to buy a modern router. I get 11 megabytes/second from my MacBook Pro to my Time Capsule disk. –  Thorbjørn Ravn Andersen Aug 25 '12 at 10:01
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2 Answers 2

up vote 1 down vote accepted

Looks closer to 802.11b than 802.11g, the speed advertised for wireless networks is confusingly not equivalent to an Ethernet cable of equivalent speed.

This guide will be informative for you:

http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials

Basically buy an Apple Airport Extreme to replace your current system, and try to use the 5Ghz frequencies instead of 2.4Ghz as you are probably suffering from a lot of interference.

Example setting up with existing router:

enter image description here

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Do you know if Apple Airport Extreme can operate with an existing router (which includes the dsl modem)? I would like to avoid to buy another hardware component (the dsl modem) –  Christian Aug 26 '11 at 12:24
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Yes, details here. –  Steve-o Aug 26 '11 at 13:16
    
Set the Airport to bridge your current router. This mean you only have one network and one dhcp-server –  Thorbjørn Ravn Andersen Aug 25 '12 at 10:03
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One thing you can do is to make sure that your wireless router is using a channel that doesn't overlap with the channels of the other wireless networks around you. The frequencies of adjacent channels (e.g., 2 and 3) overlap, which can result in interference. Lifehacker has some good tips for picking a channel here.

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Good tipp thanks!! Will try that now –  Christian Aug 26 '11 at 14:38
    
I could double my speed with another channel. No it is 9 MBPS - not perfect, but better. Thanks! –  Christian Aug 26 '11 at 18:34
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