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Windows 7: Slow wireless file transfer speed

11 Feb 2010   #11


Quote   Quote: Originally Posted by madtownidiot View Post
Quote   Quote: Originally Posted by brady View Post
It's wireless...
Of course it's wireless. If it were a wired connection it would be either 100Mb/s or 1000Mb/s.. of which only 20% would still be available for a single, one-way file transfer between two connected computers. With a wireless connection.. the available bandwidth drops proportionally with the strength of the signal.
I was agreeing with you

My System SpecsSystem Spec
11 Feb 2010   #12
Phone Man

Windows 8.1 Pro w/Media Center 64bit, Windows 7 HP 64bit

I don't know the answer, but I gave up on Wireless B for my wife's laptop and went with Power Line connection and never looked back.

My System SpecsSystem Spec
11 Feb 2010   #13

W7 Ultimate 64bit W7 Premium 64bit W7 Premium 32bit WXP Home 32bit

Quote   Quote: Originally Posted by sdjensen View Post
Quote   Quote: Originally Posted by RedBirdDad View Post
Wireless speeds for 802.11g top out at a 54Mbps data rate. But actual throughput is about half that, 25Mbps at best. Convert that to MBps and you get something around 3MBps. This is on a good day, with the wind at you back on every other 2nd Tuesday in leap year..
I wrote: I can only transfer files with 1,3MB/s which is only like 20% of what 56Mbps should teoretically perform. So there is no confusion on what the terms mean.

Quote   Quote: Originally Posted by RedBirdDad View Post
In your case, the bottleneck is Computer B with it's 802.11g connection. Since you already have an 802.11n wireless router and 802.11n on the laptop it's worth it to swap the wireless card on the desktop or just wire it directly to the router if you can. Be advised though, in order to get full speeds on 80.211n the ethernet connection to the router must be Gigabit Ethernet.
I know computer B is the bottleneck that is why I wrote I would atleast expect the transfers to be atleast 50% of the teoretically speed of 54Mbps. But since my last post the transfer rates has all gone to hell - 200kb/sec at tops which is very very very slooow - please give some advice...
56Mbps is a data rate, not a throughput. The way wireless works is based on signal strength and SNR, you'll associate to the AP at a certain data rate. Let's say it does actually associate at 56Mbps (bits per second). The throughput won't be anywhere near that. Ideally, it might be 25Mbps (bits per second). If you move, the data rate can and will change based on changes in SNR and Signal. So your throughput will change as well.

I agree that 200kbps is pretty sad. How are you measuring the throughput? What tool or program are you using?
My System SpecsSystem Spec

11 Feb 2010   #14


then the idea is to eliminate other possible causes.. firewall settings on either computer, realtime AV scanning, RF interference (which might not be curable), out of date network adapter drivers, fluctuating signal strength..
My System SpecsSystem Spec
10 Aug 2010   #15

Windows 7
Same Problem

I too am having the same problem in wireless file transfer rates. Since it has nothing to do with the ISP or my download rates from the internet the modem is thrown out the window in this discussion. I have multiple PC's connected to my network, all at a wired gigabit connection. When doing file transfers wired, the speeds are around what I would expect. However, I also have two wireless n capable laptops, and whenever I try to do a file transfer from one of the wired computers (like my server) to the laptop I will get maximum speeds of only 200k/sec if I'm LUCKY! And this is while the wireless status claims I'm connected at 130mpbs or higher. Due to the fact that I have had this problem on multiple routers and places I'm finding it hard to beleive that it is NOT somehow an issue with the new 7 OS. It seems also it doesn't matter the OS of what I'm tranfering off from, whether it's XP, Server 2008, or another 7 machine, the problem stays the same. So, anyone have any better ideas than what has already been posted? I'm know RedBirdDad and I would greatly appreciate the help.
My System SpecsSystem Spec
11 Aug 2010   #16

7 Home Premium 64bit

Make sure you enable file transfer with 40 and 56 bit encryption. Can make quite a difference. For me it means about a 100-150% increase in transfer speed transfering from a Windows Home Server.
My System SpecsSystem Spec
20 Apr 2011   #17

Windows 7

Quote   Quote: Originally Posted by HeinzHarald View Post
Make sure you enable file transfer with 40 and 56 bit encryption. Can make quite a difference. For me it means about a 100-150% increase in transfer speed transfering from a Windows Home Server.
Yea it's set to that and it makes no difference =\ oddly enough I actually get faster download rates on my wireless off of websites than I do transferring stuff wirelessly over LAN
My System SpecsSystem Spec

 Slow wireless file transfer speed

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