Airport Extreme file transfer speed slower than expected.

I have an Airport Extreme with a 1 TB drive attached.
I'm trying to copy a bunch of files to it with a Windows Vista computer with a D-Link wireless N dual-band adapter (connected to the 5GHZ channel, which I configured to act solely as wireless N 5 GHZ), but the transfer is only taking place at 1.3 MB/sec.
I'd expect more in the 8-9 MB/sec range for my new router given other benchmarks I've seen. What could be going on?

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Local file transfer speed slow on E1200

On a local file transfer (computer to NAS or NAS to computer) my file transfer speed with the E1200 is way too slow. I would expect the Wireless N speed to be at least 54mbps (megabits per second), which would be equivalent to 9 MegaBytes per second.
In practice the speed of transfer appears to be at 8mbps (1 MegaByte per second). Here is a screen shot:
The speed is the same whether I copy from the computer (on a wireless N link) to the NAS, or from the NAS (on a 100Mbit ethernet port on the E1200) to the computer. The NAS is brand new, auto configured to a RAID-1 setup with two new drives.
Anyone know why this is? is the encryption (WPA2-PSK/AES) slowing down the transfer? The same problem occurred with copying a folder of photos as with copying this large file. I don't think I can upgrade the firmware on my device, as I have the first version of the E1200.
Solved!
Go to Solution.

Sabretooth --
There is no option to set the Qos to zero. I can set it to "auto" in which case the number has no effect.
I could set it to manual but it restricts me to a range as you can see from the graphic.
In case you are wondering, my internet speed is 10Mbps downstream, 5Mbps upstream. So I am getting the same speed for the internet that I am getting for a local transfer.
The next troubleshooting step is to bypass the wireless and hook my PC to the router. I will let you know if that makes a difference.

Tiger Updates Have Broken Airport Appleshare File Transfer, Horribly Slow

Big horrible slowdowns in file transfer over wireless have me pulling my (remaining) hair out. I have seen several other posts and here are results of what I found. Hope you can add some suggestions.
I had given my Apple Airport base station (b) to my brother in Pakistan after I found a Belkin (g) at Staples for free (after rebates) and have been using it for a while (maybe almost 2 years). Not a pretty box but the price is beautiful and it works OK.
My real use for it is for my eMac and a couple of older PowerBooks I keep downstaors as a "music studio" for my music and podcast recording (and transferring upstairs to my server folder over wireless) and web browsing.
All worked OK as I would transfer the files to my PowerBook upstairs (connected Ethernet to a router connected to the wireless router or sometimes directly via Airport connection if laptop was not at my desk). Both configurations worked fine (only limitation being my eMac's (b) speed older Airport speed).
Since 10.4.4 or 10.4.5 (as that is the last "change" I can see made on my system overall, I have discpovered I cannot even transfer a 3.5 MB file from the 10.4.5 eMac to ANY of the other machines.
After reading several threads here it seems several people have noticed the HORRIBLE SLOWDOWN if not complete death of Airport usability for file transfer. People are being made to go around changing router settings, channel IDs etc. That sounds like typical tech support bunk to me.
After all, if the channel ID on the wireless router is a problem why is my web browing going on at normal speed but a 120 MB file transfer just told me it will take 2023642128 hours. No, I am not kidding. That is the time it would take to get man to Mars.
Someone else was told to hook up the machines over Ethernet. Sure, that works for machines in the same room - and is a bearable temporary solution in that case - but not in an upstairs/downstairs situation. Burning CD-Rs to transfer 120 MB files every time is also not a good way to show off Apple technology.
So, in my humble opinion, some recent update from Apple just broke something in Airport networking or Appleshare. So, I did some more testing.
I love Apple, getting friends to switch all the time, but annoyed at these bugs that basically render standard applications unusable. So far I have not been able to figure out what the problem is. Here is some more info I got.
I already deleted all the network port configurations on the 10.4.5 eMac except wireless. Activity Monitor shows 0.1 to 11 kbps speed (yes, that is 0.1 to 11 Kbps not Mbps). No other apps are running, Tried connecting to different machines. All machines can transfer data at high speed except over Airport/wireless.
I then fired up a PowerBook G3 500 10.3.9. It is slow as a machine, but it has no problems picking and dropping files on to other machines over Airport (it is sitting in the same area as the emac so signal etc. issues would effect them equally).
Next I came upstairs and changed my 10.4.5 PowerBook G4, previously working perfectly on Ethernet,to Airport only use. Lo and behold, it could not go to the Internet nor could it do any AppleShare transfers even with a PowerMac G4 which is Ethernet only.
There could still be two culprits, the Apple 10.4.5 update OR maybe the wireless router went bad. So I tried all of the above after changing channels on the Belkin router. Still no luck.
It could still be the router, so:
- I changed the HP 17" 8080 laptop from Ethernet to wireless only and it flies.
- I switched the PowerBook G4 BACK to Ethernet and it flies.
- I kept the PC laptop on WIRELESS and did file transfers from it to the now ETHERNET using PowerBook G4 and it works fine even PowerBook to PC and PowerBook to PowerMac both using Ethernet and 10.4.5 works fine too.
- I now tried to get or put files from the 10.4.5 ETHERNET PowerBook G4 to PowerBook G3 10.3.9 WIRELESS and it worked fine. i.e. no problems with older OS one using wireless.
- Then I tried 10.4.5 PowerBook G4 Ethernet to eMac wireless 10.4.5 and it would not take or drop a file, unless I was willing to wait for 3 years and 2 months.
In other words - the ONLY common thread is that 10.4.5 with wireless/Airport use will break Appleshare file transfers.
Obviously some planetary confluence did not suddenly corrupt all the settings in all my computers at the same as many others, who also happen to be using 10.4.5 or maybe 10.4.4 because the 10.3.9 using OLD PowerBook with 512 MB RAM does wireless file transfers faster than the 10 times faster Macs using Apple's own cards and newest software.
Seems like a now-becoming-usual Apple update that breaks things.
Hope you can suggest a solution so I do not have to burn CDs on the eMac for every 1 MB file I need to transfer upstairs.
Imran

Oosted on macfixit.com Friday, February 24 2006 @ 09:30 AM PST
Mac OS X 10.4.5 (#9): Another fix for network slowness -- re-applying the combo updater; SIIG FireWire card not working; more
Another fix for network slowness -- re-applying the combo updater Over the past few days we've outlined a number of fixes for network slowness that occurs after the update to Mac OS X 10.4.5, including entry of a DNS address, toggling of IPv6 and more.
We've now received notes indicating that a tried and true workaround for various issues -- re-applying the Mac OS X 10.4.5 combo updater (as noted in our general workarounds for 10.4.5) -- can have beneficial effects in this case as well.
MacFixIt reader Fred Moore writes:
"After much thrashing about and wasted time, I appear to have solved both the slow web page loading as well as my email sending problems in one stroke. Guess how: download the Mac OS X 10.4.5 combo updater and reapply it. This nonsense has cost me a lot of time but everything seems to work now. IPv6 is set back to Automatic, there is no entry in the Network prefs DNS server field, and my email sending works perfectly (so far; I've sent a bunch of tests). Why didn't I just download the combo updater and apply from my hard drive at the beginning? Well, Software Update should (yes, I know, I know...) work. I'll never again use Software Update for a system update."

File transfer speed in Shared USB Hard Drive via Airport Extreme

I' am planing to buy one of this, but first I need to know what kind of file transfer speed I can expect when sharing USB drive via Airport Extreme 1000Mbps Ethernet.
Thanks.
Message was edited by: Robert81

most likely 14m/sec but normally 10.5 this is ethernet wired and usb attached. wireless would be about 8M/sec
Wired is good enough I use it for Finder copy frequently.

Slow file transfer speed on OS X / Windows LAN

I have a Mac Mini with OS X Server (Yosemite) on a network of 5 Windows 7 PCs, the server hosts FileMaker Server 13 and also some files in a shared folder.
I notice the file transfer speed when copying a file from one PC up to the server's shared folder is around 350KB/second, is this an acceptable speed? how could I improve it?
Thanks for your help.

I'm having the same issues.. I recorded a bunch of video with the 4s.. now i'm copying them to my windows 7 pc with it peaking out at 900KB/sec. My corsair thumb drive in the same port gets 5-10x this speed. any luck getting faster speeds?

What transfer speed can I expect via wired ethernet?

3 iMac's wired to an AirPort Extreme....what transfer speeds should I expect? I'm only getting 40-60MBps IMac to IMac via Ethernet provides up to 70MBps. I am wanting to get a Thunderbolt Drive but worry that while the iMac that the Thunderbolt HD is plugged into will get much faster transfer rates, when access the Thunderbolt HD from another iMac on the network I will still be stuck with the 40-60MBps rate. Surely there is a way to get faster network speeds than 40-60MBps?

Tesserax, You are are correct, I was just hoping that there was some way to get better performance out of my network speed so that the $1500 Thunderbolt purchase was worth it. What I now plan to do is get the $999 model R4 4-1TB just so I can have one since the iMac that the Thunderbolt HD will be plugged in to will be doing the most editing so in some ways it does help me....just not as much as I was hoping it would. I can at least take my old FireWire HD and plug it into my iMac and use that for FCPX projects that are for more personal than business use.
Having only 1 HD that 3 iMac's can use to edit images from has really helped me out with keeping everything in order.
If you can daisy chain the Thunderbolt Drives I have to wonder why they didn't have it so 2 iMac's couldn't connect to 1 HD. With 2 Thunderbolt ports on the iMac you would think you could connect iMacs together using 1 port on each then have the other port for like HD's, extra screens, etc You know what I mean? If you are going to make this super fast port/cable you might as well make it to connect iMacs as well.

File Transfer Speeds

I know this topic has already been covered in some of the posts but it was replied that the latest version i.e., 6.20 would solve the bug. Which obviously it failed to do hence this post.
The latest version of skype 6.20 still gives a maximum speed of upto 4Mbps even if the clients are on Gigabit LAN connection. Version 6.18 used to stuck at 1.5 Mbps. Earlier versions (6.9) used to provide full LAN speed via skype.
Secondly, earlier versions of Skype didn't pass on the sounds of programs running on one of the clients but as I tested today, version 6.20 passes client sounds (and I'm not talking about speech) like music etc etc.
Is this really how upgrades are supposed to behave? Or is it poor quality assurance testing before making release public?
Disappointments since MS acquired this brilliant service.

Been having issues with file transfers for a while, didn't find out til I went to post here that Skype is now up to 6.21 (I was on 6.20.x but 'checking for updates' didn't find anything) so I uninstalled, installed fresh, and tried again. Still no good.
Not sure what the aforementioned previous discussions covered, but when sending a file my local connection gets saturated on the upload side. So my connection properties dialog shows my connection uploading faster than my internet can (somewhere around 800KBps, while my net upload is ~100), with everything else net related predictably slowing down. And the file transfer itself slows to a crawl.
Uninstalled the latest/current version of Skype, back to 6.16.0.105 as I read in some other advice, and am currently sending a file at my normal speed without any issue at all.
So if this was supposed to be fixed it most certainly isn't.
Note this isn't an anti-MS rant - I didn't install Skype until MSN/Windows messenger no longer worked. For my needs (IM, file transfer) messenger worked perfectly. Skype has been ok until recently with this issue.

When connecting wired my router straight from my internet provider I get speeds in the 90mps range. Now when connecting wired through my airport extreme I get speeds near 10mps. Also when using wireless for my ipad3 I recieve download speeds of .63mps.

When connecting, wired, to my router from my ISP I get speeds in the 90mbps range. Then when connecting, wired, to my Airport Extreme I get speeds of 10mbps. Wirelessly I get download speeds of 6mbps on my laptops and only 1mbs with my Ipad3. I am making sure only one device is sharing the network to make sure to get accurate results. Why are things so slow?

Hi Ty,
First, check with you ISP to see what speed they've promised. In my case, they indicated that the speed should be greater than 50 Mbps. If they say that it should be significantly higher than what your getting, then try the following if you're using Airport Utility v.6.:
1. Open the Airport Utility (Desktop: Command+Shift+U to open Utility Folder, select Airport Utility)
2. Click on the visual representation of the Airport Extreme and then select "Edit" (bottom right corner)
3. When the window opens (to a tab "Base Station"), click on the "Wireless" tab,
-it should have the following options: Network Mode, Wireless Network Name, Wireless Security, Wireless Password, Verify Password, a checkbox with "Enable Guest Network", and a button "Wireless Options..."]
4. Select "Wireless Options", which should open another window with the following options:
5Ghz network name, Country, a checkbox with "Create hidden Network", Radio Mode, 2.4 GHz Channel, and 5 GHz Channel [both of which can stay on "Automatic"]
5. Clicking on "Radio Mode" will bring up a list in which the las option should read:
802.11n only (5Ghz) - 802.11n only (2.4 GHz)
Once you click "Save", your router will blink amber for a little while and then it should work.
Hope this helps. Let me know if it does/doesn't.
DFLovesBikes
p.s. I apologize if the directions were excessively explicit, but I was thinking about my 73 year-old mother trying to follow them, so I erred on the side of making them more understandable. Good luck.

K8T Mstr2-FAR7 ---- File Transfer Speed

I measured file transfer speed between partitions, 1) both in the same physical drive and 2) each in a different physical drive. The measurements were made on WXP and WVT by using a file having 1048MB in size. Results are as follows:
1) Partitions in the same physical Drive
WXPx86 : 18.55 seconds
WVTx86 : 38.91 seconds
2) Each partition in different physical drive
WXPx86 : 9.31 seconds
WVTx86 : 19.13 seconds
Are the above results normal? Vista's speed appear way lower than the maximum allowed by SATA-150. The speed may be affected by many factors. My hardware spec is shown below. RAM is in single channel mode and is running as DDR333.
Could anyone shed light on the matter of file transfer speed?

It's because Vista is buggy, everybody knows this.
If you want speed, use XP.
And that isn't the only problem with Vista, also graphics is 3x faster under XP.

Maximum Bonjour file transfer speed?

I have a question for anyone who transfers files over Bonjour with iChat. What's the fastest speed you've been able to achieve?
I got 20MBps today, consistently for a 5GB file. Here's my setup:
I have a great Asus 100Mbps router running Tomato. It's connected to a Linksys Gigabit router, which is running DD-WRT in AP mode. I have 2 macbooks connected to the Linksys using GigE. Since my file transfer was faster than 12Mbps, I know iChat isn't routing all that data through the Asus, which is impressive; I'm surprised it can do that so efficiently. But then I wonder, why can't it be even faster?

Hi,
You need to look into the Actual real world throughput
http://searchnetworking.techtarget.com/answer/Ethernet-throughput
9:00 PM Wednesday; February 2, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

File transfer speed when on battery power

Hey there - I've noticed that my file transfer speed is ridiculously slow when i'm not plugged in to a power source. Even when my battery is fully charged it's super slow. This happens not only when I'm uploading files from a memory card to my computer but when I'm attaching files to an email, or even sending an email. I've asked other mac users and they say this is not the norm for their machines....any ideas?
thanks!
Sunny

additionally, you can disable power menagement for your wireless card completely through iwconfig's power option. I suggest you read the manpage for iwconfig, I have quotes the 2 related options for you.
txpower
For cards supporting multiple transmit powers, sets the transmit power in dBm. If W is the power in Watt, the power in dBm is P = 30 + 10.log(W). If the value is postfixed by mW, it will be automatically converted to dBm.
In addition, on and off enable and disable the radio, and auto and fixed enable and disable power control (if those features are available).
Examples :
iwconfig eth0 txpower 15
iwconfig eth0 txpower 30mW
iwconfig eth0 txpower auto
iwconfig eth0 txpower off
power
Used to manipulate power management scheme parameters and mode.
To set the period between wake ups, enter period 'value'. To set the timeout before going back to sleep, enter timeout 'value'. You can also add the min and max modifiers. By default, those values are in seconds, append the suffix m or u to specify values in milliseconds or microseconds. Sometimes, those values are without units (number of beacon periods, dwell or similar).
off and on disable and reenable power management. Finally, you may set the power management mode to all (receive all packets), unicast (receive unicast packets only, discard multicast and broadcast) and multicast (receive multicast and broadcast only, discard unicast packets).
Examples :
iwconfig eth0 power period 2
iwconfig eth0 power 500m unicast
iwconfig eth0 power timeout 300u all
iwconfig eth0 power off
iwconfig eth0 power min period 2 power max period 4
website with the current manpage:
http://linux.die.net/man/8/iwconfig
or simply:
$ man iwconfig
Last edited by stefanwilkens (2010-09-13 11:11:37)

IPhone File Transfer Speeds

I have two MacBooks and two iPhones and I'm seeing very different file transfer speeds between the two. Both have the backup option manually disabled to improve sync times.
Setup 1: iPhone 3GS with MacBook Pro (15-inch, Late 2008) model
Setup 2: iPhone 3G with Black Macbook (13-inch Mid 2007) model
The time it takes to sync video between the two is drastic with the newer model copying files in a few seconds, and the older setup copying files over 5-10 minute periods.
I have yet to swap the two iPhones on the two computers but from a technical perspective, I don't understand why one would transfer files faster than the other. Both are using USB 2.0 and I've already tried using the same cable for both. Anyone see similar behavior? Is this a facet of the older computer or older iPhone?

As an example, a USB host on a PCI bus will send or receive the data via the PCI bus; the stack will prepare the next data in memory and receive interrupt from the host. That's what I mean, how that's implemented.

Airport Extreme files not visible on USB drive.

Airport Extreme files on Toshiba USB powered drive not visible through Windows. I disabled antivirus with no change. If I copy files onto it they go but then disappear. If I copy again it asks if I wish to overwrite the file as its already on the drive I just can't see them there. I tried another computer, also Windows 7, on our network with the same results. It is formatted as Fat32 and is recognized by the Airport. It is a 1TB size drive.

double post.

How do I see file transfer speeds?

Hey guys, does anyone know if it's possible for me to see file transfer speeds instead of just the time remaining in Finder?

Hi,
In song view, go to menu > view > view options and select bit rate, file type and size.
In preferences, you can change import settings to Apple lossless. When you use file > create new version you can now can now convert from aiff to lossless.
Create playlist based of file type being lossless.
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Airport Extreme refusing to accept more than 7 clients

Our airport extreme (7.2.1) used to be happy with at least 11 clients. Four people in our office now own iPhones. When all four iPhone owners are in the office, not only are they unable to connect to the airport extreme, but some Macs are also unable to connect. Our airport extreme refuses to accept more than 7 clients. The logs in AirPort Utility don't show anything related to client refusals. All but one of the Macs are on Tiger - the other is running Leopard.
Any thoughts appreciated.
Thanks
Paul

It is the extreme, my mistake in the previous post.

Airport Extreme file transfer speed slower than expected.

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