Slow Wireless Transmission Problem on Win7

January 21, 2010 at 02:45:12
Specs: Windows 7
Hi, I have an XP SP3 Pro machine where I keep all my media. I also have a laptop with Windows 7 Ultimate and another laptop with Windows Vista Home. The thing is I want to be able to not only play my files from my media pc but obviously also transmit new media to and from it. Streaming from this PC is not a problem, this works fine, however when I want to transfer media it's waaay too slow, I'm getting transmission rates between 500 and 650kb/s. I use a D-Link DSL-2640B ADSL2/2+ Modem with Wireless Router, which has a rate of 54mb/s. I also tried to transmit in both directions, it's the same. If I want to transmit from my vista laptop to my pc, the same, from my vista laptop to my win 7 laptop, in every direction it's the same.
I've been googling arround and tried a couple of things:

* Disabled autotuning on win 7 laptop
* Removed Remote Differential Compression on win 7 laptop
* Removed IPv6 from network properties on win 7 laptop
* Cleared DNS Cache on win 7 laptop
* Changed the router setting from: mixed 802.11g & b to 802.11g since we're all in close range.
* Changed the transmission rate of the router to 54mb/s instead of automatic

None of these things actually changed anything I think, or maybe a little, the difference could be arround 100kb/s.
I also read about using netbeui which is supposed to be a faster protocol and disabling netbios in this way, but I didn't try this because It never really sounded that convincing.
I also didn't try to connect both laptops with utp cables and see what their transmission rates were to locate if the problem is maybe the router, I could try this when I get back home. Or if I had two xp machines I could also compare better.
Anybody has any ideas of what I could try next? Because If I want to copy an 8gb game this takes 4hours, which is slower than actually downloading it


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#1
January 21, 2010 at 11:13:31
Theoretically NetBEUI is faster because there is less network trafic then using TCP/IP but in a small home network with only a few computers, the extra traffic is negligible. You would not see any difference.

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#2
January 21, 2010 at 17:55:02
"...use a D-Link DSL-2640B ADSL2/2+ Modem with Wireless Router, which has a rate of 54mb/s."

If you're transferring data wirelessly, that 54mbps is your bottle neck. The things you mentioned won't make much difference.
You'll get much better data transfer rates when you use the wired network ports and network cables between the computers and the router , or a network crossover cable between the computers. If all or at least one connection is/are 100mbps, your data rate is nearly double - requires a minimum CAT 5 rated cable . If both computers have 1000mbps (gigabit) adapters, the max data rate between them with a crossover cable will be nearly 20 X as much - requires a minimum CAT 6 rated cable.

54mb/s, 100mbps, 1000mbps.....
Network related devices and your max internet speed are rated in BITS per second, not BYTES per second like other computer related things. 8 bits per byte, and about 2 bits per byte for data error correction and other network overheard, results a max data transfer rate in bytes per second of about 1/10 of the rating in bits per second, unless data compression is being used, which usually is not the case.

If you had two wireless N adapters for the computers, that's also much better.


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#3
January 22, 2010 at 03:40:01
Thanks a lot, finally someone with a decent answer.
I'll try ripping a cable through the wall or something to my media devices. Than I'll at least have one of the two which has a wired cable, should improve some at least I guess.

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