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For some time now, I wanted better WiFi performance in my home network, and, since I already own AirPort Express (draft 802.11n version) and iMac (Snow Leopard, 802.11n too), I went out and bought Linksys WUSB300N WiFi adapter for my PC (Windows XP), hoping for improvement. Unfortunately, to my great dissapointment, network went from sluggish to... er, a little less sluggish Now, I know those numbers like 300Mbit/s don't resemble reality (especially since you have to divide it by 2 in the first place), but what I got was more like I had to have in my 802.11g in the first place.
iperf confirms my observation. On its best run, it shows only 24.5Mbit/s between iMac and PC (peak: 3.2MB/s). I don't have enough experience, nor the reference rates to compare with, but to me, this sounds very bad for n. For testing purposes, i put back my 802.11g, and iperf shows me about 12Mbit/s. This sounds low for g too (54/2 = 27), doesn't it?
I live in a small apartment, and router, iMac, and PC are all within a reach of few meters. That's why I find it odd that it takes a while finding the perfect location for Linksys adapter, where it "connects at" maximum speed (144.5Mbit/s according to Windows network status) and stays like that. iMac's link speed is 130Mbit/s. Router is set to 802.11n only, with WPA2, but i observe identical behaviour with no encryption and compatibility with b/g turned on. By using AirPort utility, I can confirm that iMac and PC are the only clients connected to router. I tried automatic channel selection, and manual (where I live, only channel 1 is occupied, according to Network Stumbler, so I picked channel 7). I'd like to try with 5GHz, but Linksys doesn't support that (should have looked better before buying). I turned off every other device during testing, so that I can confirm that there is no interference (at least not from something in my apartment). I used latest drivers, and I tried adapter on PC and on my laptop, where I was free to move it around. Nothing helps. 24.5Mbit/s top.
Now, there is another interesting thing. I tried to find out where the bottleneck is, so I did this:
Can anyone tell me if this is normal? 25Mbit/s for n network? 12Mbit/s for g network? And if it isn't, what more can I do? Thanks in advance!
Last edited by tymarats; 09-27-2009 at 10:40 PM..
I live in an apartment complex on the 4th floor and had a similar problem as you did. I have a Linksys Wireless-G router. When I would use my labtop to connect to my wireless router, it would show 1 or 2 bars and a weak signal. A friend of mine from school told me about this wi-fi booster that is a usb connection device that actually strengthens your signal. I bought it from a company called hfield, it's called the wi-fire. I actually get a good signal from a distance away too. Here is the website if you want to check it out. Best of luck
hField Technologies, Inc.
You probably have excessive interference in or around your building. You can find the best channel to use with a spectrum analyzer. The most user friendly one is by MetaGeek...you need the 2.4Ghz Wi-Spy 2.4x
Gigabit Wireless | IP Camera
Metageek Wi-Spy | Ruckus Wireless
|802.11n, 802.11xx, airport express, linksys, performance|
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