Slow transfer from/to SMB share over Airport

Recently I updated my Macbook's Airport with 2008-004 (OSX 10.5.5) update and now I am experiencing very slow transfers to and from SMB share.
I get normal speeds (~3MBps) if I copy file from my macbook to iMac, but when I copy the same file to (or from) Windows share the speed drops to ~130kBps after 1 or 2 gigabytes of transfer and never recovers to full speed afterwards. If I connect to this Windows machine using FTP the transfer speed is normal - 3MBps.
I also tried streaming to my appleTV which is also connected wirelessly and all movies play just fine.
If I connect my macbook to wired 100Mbps ethernet the transfer speed to windows share is full 8MBps.
Anyone has any ideas what's happening?

This has been an ongoing problem of the Airport Extreme for, well, forever. In the beginning, I even thought my AE was broken, so I returned it to the shop to get a new one. I got a new one alright, but it has the same problem.
I've Googled this problem many times and once in a while I try again to hopefully find a solution, but no luck so far. Whenever there is a software (or actually firmware) update for the AE I get very excited, only to get disappointed again.
The performance of the AE I have now is really unpredictable, sometimes it would do up to 8 MB/sec. Lately though, it only does 1 MB/sec and the network activity looks really weird (a lot of spikes in traffic and then slowing down again).
I'm 100% Mac here and nothing in this house runs windows, so I'm really lost on this subject and I feel like I should give up and just buy myself a good Linksys that actually does the job.
But, just to keep trying: does anybody found a solution to this common problem?

Similar Messages

Slow folder browsing on smb shares

I'm having big problems browsing a smb share on a Windows 2003 Server share.
Whenever i change folders in the share it can take up to 1-2 minutes before the new folder content appears.
I tried lots of things such as editing /etc/smb.conf and also /etc/sysctl.conf without success.
Anyone have any ideas on what could be wrong?

Apple has always seemed to give poor performance for remote users compared to an equivalent Windows setup running over the same remote link. I think this is a combination of several things.
Firstly, the Finder on a Mac gets a lot more information to display a directory listing than Windows Explorer on Windows does. The Finder is of course getting the same file/folder names but in addition can get Finder comments, labels (colours), custom icons, etc. which Windows Explorer would not.
Secondly, I am convinced that AFP is not as efficient over slow links and/or high latency links as SMB.
Thirdly, I am also convinced that the Finder is grotesquely inefficient in sending and processing commands and replies, whereas perhaps Windows batches things up. As an ancient example of this anyone else remember the floppy disk shuffle on the original Macs?
I suspect because Apple have a very fast pipe to the Internet they have not appreciated how bad this can be. They need perhaps to consider getting a WAN link simulator and then they can see the problem and hopefully introduce more optimisation.
Unfortunately there is not much you can do about any of these things, you could try using SMB on the Mac rather than AFP as this might cause the Finder to not try getting some of the extra information like colour labels. Avoiding using the Finder if possible is the best option, you could help achieve this by keeping shortcuts to files on the Server so you don't have to keep browsing to the folder itself.

Using robocopy to copy files from a network share over a WinRS command line session

Hello,
Preface: Using server 2008 enterprise.
I can't seem to get robocopy to function over WinRS and I'm not sure where the problem actually lies. Running robocopy locally on the computer does work fine, but as soon as I try to run it through a remote command prompt through the WinRS client or directly with the WinRS client I get an access denied message (error 5).
I've tried using runas while logged into the remote command prompt as well, thinking that it could have been some sort of permissions inheritence issue.
I've checked the permissions on the remote file share, I've even given 'Everyone', 'Anonymous Logon' and the computer's active directory account full control over the folder and the file I'm trying to copy, but still get the access denied error.
I've tried using /COPY:DT since I read that usually resolved error 5 issues.
None of these things have worked.
I'm kind of out of ideas, I've read some blogs of people who have written powershell scripts which use winrm/robocopy so I figure I'm missing something stupid. Or maybe I've stumbled upon a bug?
C:\>robocopy \\192.168.100.1\share c:\test example.exe
   ROBOCOPY     ::     Robust File Copy for Windows
Started : Mon Feb 09 17:35:32 2009
2009/02/09 17:35:32 ERROR 5 (0x00000005) Getting File System Type of Source \\192.168.100.1\share\
Access is denied.
   Source - \\192.168.100.1\share\
     Dest : c:\test\
    Files : example.exe
Options : /COPY:DAT /R:1000000 /W:30
2009/02/09 17:35:32 ERROR 5 (0x00000005) Accessing Source Directory \\192.168.100.1\share\
Access is denied.

Yep, I verified permissions on them all :(
To maybe complicate the issue, I looked at the environment variables for myself while logged in locally to the computer and through WinRS and they look to be the same.
EDIT: Out of pure frustration I wrote a quick console application which impersonates the currently logged in user and copies a file from the network share I'm trying to access to the local computer. The application properly impersonates the user - but does not copy the files while it's run through WinRM. When you run the application as a locally logged in user it works just fine.
WinRM must be behaving goofy :(
This is the output of the following application:
C:\Windows\System32>test.exe
Name: domain\loggedinuser
IsAuthenticated: True
User: {GUID}
AuthenticationType: Kerberos
Destination directory doesn't exist, creating new directory..
Undoing impersonation..
No exceptions, no nothing :(
Imports System.IO
Imports System.IO.File
Module Module1
   Dim impersonationContext As System.Security.Principal.WindowsImpersonationContext
   Dim currentWindowsIdentity As System.Security.Principal.WindowsIdentity
   Dim cpr As New copyProgress(AddressOf FileCopyProgress)
   Dim destinationDir As DirectoryInfo = New DirectoryInfo("c:\destination\")
   Private Delegate Function copyProgress(ByVal totalFileSize As Int64, ByVal totalBytesTransferred As Int64, ByVal streamSize As Int64, ByVal streamBytesTransferred As Int64, ByVal dwStreamNumber As Int32, ByVal dwCallbackReason As Int32, ByVal hSourceFile As Int32, ByVal hDestinationFile As Int32, ByVal lpData As Int32) As Int32
   Private Declare Auto Function CopyFile Lib "kernel32.dll" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal lpProgressRoutine As copyProgress, ByVal lpData As Int32, ByVal lpBool As Int32, ByVal dwCopyFlags As Int32) As Int32
   Private Function FileCopyProgress(ByVal totalFileSize As Int64, ByVal totalBytesTransferred As Int64, ByVal streamSize As Int64, ByVal streamBytesTransferred As Int64, ByVal dwStreamNumber As Int32, ByVal dwCallbackReason As Int32, ByVal hSourceFile As Int32, ByVal hDestinationFile As Int32, ByVal lpData As Int32) As Int32
   End Function
   Private Function FileCopyProgress2(ByVal totalFileSize As Int64, ByVal totalBytesTransferred As Int64, ByVal streamSize As Int64, ByVal streamBytesTransferred As Int64, ByVal dwStreamNumber As Int32, ByVal dwCallbackReason As Int32, ByVal hSourceFile As Int32, ByVal hDestinationFile As Int32, ByVal lpData As Int32) As Int32
   End Function
   Sub Main()
      Try
         currentWindowsIdentity = CType(System.Security.Principal.WindowsIdentity.GetCurrent, System.Security.Principal.WindowsIdentity)
         impersonationContext = currentWindowsIdentity.Impersonate()
         Console.WriteLine("Name: " & currentWindowsIdentity.Name)
         Console.WriteLine("IsAuthenticated: " & currentWindowsIdentity.IsAuthenticated)
         Console.WriteLine("User: " & currentWindowsIdentity.User.ToString)
         Console.WriteLine("AuthenticationType: " & currentWindowsIdentity.AuthenticationType)
         If Not destinationDir.Exists Then
            Console.WriteLine("Destination directory doesn't exist, creating new directory..")
            destinationDir.Create()
         End If
         CopyFile(Path.Combine("\\192.168.100.1\share\", "example.exe"), Path.Combine("c:\destination\", "example.exe"), cpr, 0, 0, 0)
      Catch ex As Exception
         Console.WriteLine(ex.ToString)
      Finally
         Console.WriteLine("Undoing impersonation..")
         impersonationContext.Undo()
      End Try
      Console.ReadKey()
   End Sub
End Module

Utility to block writing ._[files] to SMB shares over Ethernet?

I'm just tired of informing Windows users at the office that the files I've put on their machines are the ones without the "._" at the beginning of their filenames, and that they can safely trash anything beginning with "._"
I'm also sure I saw somewhere yesterday a utility (or was it a PrefPane?) that eliminates all resource files/"._" redundant files from being copied to smb shares. Can't remember what it was or where I bumped across it.
Any pointers people?
Many thanks.

I'm actually surprised that it worked - 'DSDontWriteNetworkStores' set to "true" is supposed to block the creation (though not the copying) of ".DS_Store" files that store "Finder" info such as window or icon positions, "Comments", etc. The "._files" are "AppleDouble" files which contain information from resource forks, file attributes and some other metadata - a different thing entirely that shouldn't be affected by the ' DSDontWriteNetworkStores' setting. I think there are a few third party utilities that can clean up "._AppleDouble" files (including the ones mentioned already), but I'm not sure if there is any way to prevent them from being created...
By the way, ...'write true' writes '<string>true</string>' whereas ...'write -bool true' writes '<true/>' to the ".plist" file. Some apps have been written to recognize a given key with either form but others seem to require one or the other. This is in contradiction to the 'man' page for 'defaults', which states:<pre> For the basic plist types (strings, data, ints, floats, booleans, and
dates) it is not necessary to precede the value with a type qualifier.</pre>

Slow transfer from externail HD to ipod

Ever since I got my external firewire HD, the transfer from itunes to ipod is unbelievably slow. I searched around the internet and saw posts from 2004 talking about issues they had with iSight and firewire devices in general but no fixes.
I reset my ipod, updated it, reformatted and such but the rates are still slow.
I use my external to house my music library but it takes about 3 seconds to transfer a single song.

And the workaround is?

Suddenly slow transfer of files between computers over LAN

All, I have the following: HP Desktop, XP Pro, SP3, with Maxtor external HD Dell Laptop, VISTA Business, SP2 Both 32 bit Both running Norton Internet Security 2011, including firewall Linksys WRT54GL router V1.1, connected to DSL The external HD is configured to share over the network. I use it to move files between the twp computers, and to access the Internet. It has been working fine for about 3 years. Everything is still working, except that the speed of transfer, either direction, between the laptop and the external HD has dropped to nearly zero. Files that used to take a minute or so to transfer now literally take hours, and depending on the software, may time out. The problem is not so much the speed over the network, but that the data is only sent in short bursts, with long, many seconds, delays between. As the file progresses, the process gets worse. Typically, it takes as long to send the last 10 % as the first 90%. In the past, the data was sent in a continuous stream. The access between the laptop and the Internet is still fine. I am in a rural area, and have verified that there is no other WiFi to interfere. Using my backup program, I have rolled both my computers back to a time when everything was working. The problem still exists. That seems to point to the router. I have flashed the most recent firmware and reconfigured, but not help. Google turns up lots of hits, but nothing that fits this. Any suggestions on what to do next? For now, I am just swapping the USB drive physically. Alan

Try to reset the router and reconfigure it.
Press and hold the reset button on the router for 30 seconds. Release the reset button and wait for 30 seconds. Power cycle the router and reconfigure it.
Change the MTU size to 1365. Save the settings.
Go to Wireless tab and click on Advanced wireless settings. Change the Beacon Interval to 75, RTS and fragmentation threshold to 2304. Save the settings. Power cycle the router and see if that helps you.
Disable or turn OFF the firewall or Anti-virus software on your computer.

Slow transfer from MacBook to time capsule.

Hi all,
I want to copy my iphoto library to my time capsule, I have only just set up my time capsule and it is connected to my wifi network and all seems to be functioning correctly. The iphoto library is about 70 gig and when I perform a simple copy and paste function in finder the finder window says that it will take 3 days to complete, this is obviously far slower than expected. I have tried it both with the tc plugged into my router (so just a wireless connection) and directly to my MacBook via ethernet so with the latter especially I would expect pretty quick data transfer. Am I correct in saying that I should just go directly from any of the ethernet ports on the tc to my mac and don't need to change any of the ethernet settings in the network preferences?
I suppose I want to know firstly why is the data transfer so slow and secondly what is the best and quickest way for me copy the iphoto library?
Thanks in advance

Would you recommend anything cheap ish that will do the job?
I am in Australia.. so the other side of the world.. and all our ISP allow or use exclusively PPPoE.. but I deal with many many UK users in forum in Australia, whirlpool.
Who is your ISP? Do they allow pppoe?? I have noticed a creeping acceptance that BT made a bad choice in using PPPoA exclusively in the early days of ADSL. which was followed like sheep in herd by the minor ISP.
If you can use pppoe.. then you bridge the modem.. not the TC.. and use the pppoe client in the TC.. which is really the only other connection method offered than ethernet and dhcp.
Even an old modem can be fine in bridge.. but netgear.. being the ratbags they are.. made bridging on their modems a total pain. Still there are at least 5 different versions of the DG834G.. with 3 completely different chipsets. So check by google quickly your version.. eg DG834G v3 bridge and see what comes up.
As for other brands.. TP-Link are very popular world wide now.. I guess you will have them in the UK. If you want a modem to bridge they are cheap and generally fine.
A much better brand is draytek.. they build one model, which is designed specifically for the UK .. it is single port bridged modem.. 120.. it is expensive.. but it does one neat trick.. pppoe to pppoa translation.. so you can use it bridged to your ISP.. and use the pppoe client in the TC without having it actually use pppoe. There are a handful of modems that use this trick.
A speedtouch / Thomson / Technicolor 536 is another favourite.. but I am pretty sure you will have to bridge the TC.
Should I still change all the details that you have mentioned anyway (network name and tc name)?
Yes, why not give it a go.. in bridge on the TC.. the name is more important.. it will appear to the Netgear with that illegal name.. just try and see. If it doesn't work it is no biggie. But I advise people generally do not use illegal networking names even if Apple thinks it is ok.. Apple is 10% of the network world.. you have just made yourself part of exclusive club.. which is fine if Apple built modems, ran exclusive ISP for apple users only and the internet.. but they don't. Microsoft tried that and fell on their faces. Why setup names that will be illegal to the rest of the world is beyond me. Why not tell people to stick to SMB compatible names and how important that is.. ?? How much pain Apple has caused people with network issues that stem directly from their illegal naming conventions. if you have to deal with the rest of the world.. which pardon me.. is everyone.
Also you have mentioned that you would normally advise bridging it in a different way, is the way that I have done it ok or does this also need changing?
Thanks
Yeah that is bridge the modem .. see above.

V. Slow transfer speeds with new dual band Airport Extreme

I have a new Airport Extreme (late 2009, dual band, full 'N' spec) which I am using to replace an older Airport Extreme (early 2008, 5Ghz, 'draft' N).
I have a USB disk attached and was interested in benchmarking the transfer speed of the new Extreme, compared to the previous version. The results are puzzling / alarming.
Shown below are transfer speeds (file copied to the attached USB drive) under different connection standards (2.4Ghz / 5Ghz & a/b/g/n)
'Old' Airport Extreme
5Ghz - 'draft' N : ~5-7 Mb/sec
'New' Airport Extreme
2.4Ghz - b/g : ~3-5 Mb/sec
5.0Ghz - a : ~3-7 Mb/sec
5.0Ghz - N : ~200 Kb/sec
Hence transfer speeds appear to collapse when I try to make use of the 'N' spec with the latest Extreme. I have tried altering items such as - wide channels (on / off), interference robustness (on / off), 5Ghz channel (manual, instead of auto), with no upside.
I seem to be at the point of concluding that either
1. I have a 'broken' Airport Extreme
2. The WiFi card on my early 2008 iMac (which implements I guess the 'draft' N standard) is 'incompatible' with new the Airport Extreme under a 'N' connection.
Any thoughts ?

Since all devices in my wireless network are capable of latest 802.11n protocol, I really do not need older and slower 802.11a/b/g protocols. To achieve above 200 Mbit/sec, 5GHz band with wide channel option turned on is really necessary. Thus I really wish I can turn off the 2.4GHz radio band (seems Apple has set this band as default) of my new dual band Airport Extreme to avoid unwanted bandwidth degradation. Unfortunately this is not possible with radio mode setting in Airport Utility.
The best I can do to force connection with 5GHz radio band (with quite consistent result) is as follows:
On Airport Extreme through [Airport Utility>Wireless] :
Radio Mode: 802.11n only (5Ghz) - 802.11b/g/n
More Options>Wireless Network Option>Transmit Power: 100%
More Options>Wireless Network Option>Use Wide Channels: checked
More Options>Wireless Network Option>5 GHz Network Name:
checked and same network name with extra suffix "(5 GHz)"
On 27" iMac through [System Preferences>Network>AirPort>Advanced>AirPort]:
Preferred Networks:
Create only one profile in Preferred Networks for the above network name with suffix "(5GHz)"
Uncheck the option [Remember networks this computer has joined] to ensure there is only one profile under Preferred Networks .
Once all above settings are done, restart Airport Extreme in Airport Utility. Your computer should connect wirelessly to the base station through 5GHz band after booting most of the time. Even when it is not occasionally, simply go to the Airport icon in main menu bar and click on the network name with suffix "(5GHz)" in dropped-down list to connect manually. With all these settings, I have achieved 300 Mbit/sec bandwidth on my iMac most of the time for fast Time Machine backup.
How I wish feature for better radio mode control by end user will be implemented in next update of Airport Utility. Apple should trust end user's brain better than artificial intelligence (or ignorance ?) in wireless network implementation. Wireless traffic between the two radio bands and among various wireless devices should be segregated specifically in Airport Utility by end users whenever dual band Airport base stations are in use.

Very slow transfer from TC to external drive (on ethernet)

Hi all,
I just bought a Lacie external 1TB drive which I connected via Ethernet to the TC. Started moving around 100GB of files from the TC to the drive and it seems it will take 35 hours! I don't think this is normal...does anyone know how to increase the transfer speed?
Many thanks!

Paolo da ROma wrote:
Thank you Pondini. Unfortunately, this seems not to work. I have eliminated the spotlight thing, disconnected the cordless, but no change: 19 hours for 43 giga, and whats is worst is that after a while i get a disconnection from the timecapsule and I have to start from scratch again.
That sounds to me like you're having WIFI problems. That's a bit out of my area, but you might try changing the setting of +*Use interference robustness+ in Airport Utility > Wireless > Wireless Options. Unfortunately, I think changing that requires the network to shut down and restart, so don't try it while the copy is actually running.
You mentioned iPhoto Libraries; do you mean you have more than one? If so, can you do one at a time?
I was wondering if there was a way to do sort of a clone to the TC without going via the file manger.
If you mean from the TC to a USB drive, then there is, sort of, but I don't think it's going to work any better. See the green box in #Q6 of the Using TIME MACHINE with a TIME CAPSULE *User Tip,* also at the top of this forum.

Auto connect windows share over airport extreme, need delay somehow

Hi, Once the Imac is up and running, I can conenct to my win 2k box on the network fine (not w2k server, jsut w2k pro). I've got the smb location in the users pane to load at startup. Problem is that it takes a couple seconds for airport to connect and get settled. That means when the smb mount command opens and tries to conenct, I get an error that the dsrive couldn't be written to or accessed. What I need, (i think) is a way to delay the smb mount for a few seconds, until after airport is done conencting. Anybody have any option for this, or a better way to connect that is reliable and consistant? It angers me that I can just map a network drive on a pc to another network pc in about 2 seconds, and that I have to run through hoops on the "simpler, more advanced" Mac. I love Macs, but between this problem, and trying to figure out why I've been trying for 2 hours to get a borderless photo print from the mac to my Epson, I'm a bit frustrated. It's not "just working" for me right now....Thanks!
Steve
iMac G5, Dual 2.7 G5, iBook G3 Mac OS X (10.4.1) mixed Tiger, os9,xp,w2k environment

Welcome to the discussion area!
I am assuming that your drive is correctly formatted in Mac OS Extended (Journaled) or FAT 32. If it's formatted as Windows NFTS, the drive will not appear.
You'll also usually need to use a powered USB hub, even if your drive has it's own power supply because the available power at the USB port on the AirPort Extreme is quite low.
Open the Finder and look for your AirPort Extreme icon under the SHARED heading on the the left side of the window.
Click on the AirPort Extreme icon and a folder representing your drive will appear in the right hand side of the window.
Double click the folder to mount the drive on your desktop.

Slow streaming from external drive connected to Airport Extreme

In the last week or so, when I try to play videos stored on my Airport Extreme on my Apple TV, they are extremely slow to load. It takes about 10 minutes before they even play, and at various points throughout it will have to essentially buffer for the same amount of time. The problem seems limited to the Apple TV, though, as I have no problem playing the same videos directly in iTunes.
Has anyone else experienced this lately?

Katie, I have had the same problem with both AIrport Extreme and a new TC.
Have you update the firmware to 7.4.1, if so downgrading back to 7.3.x fixes the problem for now.
I think there is something going on as a result of the 7.4.1 firmware upgrade.

Agonizing Slow Transfer From LaCie 500GB USB to TC = 212 Hrs!

OK guys before I shoot myself for having believed I could use the TC to be a file server for my photography please tell me there is a way to transfer 350GB of files off my LaCie 500GB external drive that wont result in a 5 week transfer. I just tried to connect directly via USB and it was going to take 212 hours to transfer!

You definitely want ethernet to transfer 350 Gigs. Make sure you have a CAT5e or CAT6 cable to take adavantage of gigabit speeds, not just a plain CAT5 cable.
As Anthony said, make sure the external drive is connected to the Mac, not to the TC. Otherwise the Data goes from the USB drive, through the TC to the Mac and back to the TC drive.
Also, you have two different methods of doing the backup. One would be to just drag and drop the files from the USB drive to the TC drive, in which case the files will be copied to the TC in their existing folder structure, but you will have to do incremental backups manually.
If, on the other hand, you do as Anthony suggests, and uncheck the privacy box which prevents backing up the external drive, I suspect the external drive will just be added to your existing sparsebundle on the TC (I have not tried this) and will be incrementally backed up along with the rest of the files on your computer.
Expect the initial backup to go at a rate of about 15 gigs per hour via ethernet.

Title bar untitled via smb share

QuickTime 7.4.1 for Windows, downloaded and installed over an existing QuickTime installation.
Prior to update (unknown version, quick troubleshoot), Quicktime Player would play .mov files either 2x clicked from the desktop or from an smb share. Locally opened clips would display the text: filename.mov in the title bar which is a desired behavior. When the clip was opened from a share, the title bar would read: "Untitled", unless multiple Player windows were open: "Untitled 2" and so on. When the Player window was closed, a windows error would appear, and Quicktime Player had quit.
Updating allows for the opening and closing of files in the absence of error dialogs (cheers!). However the title bar still shows a variant of "Untitled" if the file is opened from a share.
Other PCs in the same environment display a SMB path in the title window, which would be dandy.
It gets silly showing this to clients. "I prefer the saturation of Untitled 4 to that of Untitled 9". and so on....
Thanks for any information.
I'm looking to the samba logs shortly....
-c.

I don't know anything about Samba servers but I do know QuickTime.
QuickTime Pro can add a "title" to any file so that title shows in the Player window instead of the default file name and extension.
To set a title open the file with QuickTime Pro and open the Movie Properties window. Under the "Annotations" tab you can enter a title and other useful information that travels with the file.
I'd bet it would work on your files.

Media Share over HTTP

I have a share from OS X Server that can be accessed over the internet by guests. On my router, I was able to browse smb shares over the internet by going to 192.168.1.1/shares/ and each share would show up in a folder, browsed by a folder tree over http. Can I do the same thing with afp shares? And if they load a large video, will it wait until it all loads to play, or buffer as it goes?

SMB, AFP, and HTTP are separate protocols. When they can browse your files via HTTP its because you have a Web server on your system configured for folder content browsing (ie, folder listings or WebDAV). You can definitely share folders through the internet via AFP, but will have to ensure the proper ports (ie, TCP 548) are open on your router, and that forwarding is properly set up on your router.
As for playback, most likely the files will need to load in full or at least in large part, but this will depend on the format of the file and the media player being used.

How to share an airport connected USB Disk over internet

Hi all,
I'm trying to get my AEBS connected USB Disk to be accessible over the internet, so I can access it when I'm not at home.
In Airport Utility I checked both 'Share Disks over WAN' and 'Share Disks over the internet using Bonjour'.
I've also set a few accounts who can connect to it (instead of being guests).
But what's next?
I can connect to the disk in Finder by selecting the menu-option 'Connect to server' and typing in 'afp://ip-address' (where IP-address is for the AEBS) as long as I'm in my home network, but I tried the same at my work but that doesn't work.
Do I have to configure the AEBS in some other way to make this possible?
Any help, advice would be appreciated.

Using the AirPort Utility, you will need to both enable File Sharing and configure the AirPort for Port Mapping. (Note: It is assumed that your 802.11n AirPort Extreme Base Station (AEBSn) is the only Internet router in your current network configuration. That is, it is connected directly to a broadband Internet modem, and not another router upstream of it.)
The following are the basic steps to configure an AirPort Disk to be accessed from the Internet:
Start the AirPort Utility > Select the AEBSn, and then, note the IP address shown.
Select Manual Setup.
Verify that Connection Sharing = Share a public IP address is selected on the Internet > Internet Connection tab.
Select Disks, and then, select File Sharing.
Verify that both the "Enable file sharing" and "Share disks over WAN" options are enabled.
Verify that Secure Shared Disks = With a disk password. (Recommended)
Verify that AirPort Disks Guest Access = Not allowed. (Recommended)
Select Advanced, and then, select the Port Mapping tab.
Click the plus sign to add a new port mapping.
For Service, select the "Personal File Sharing" option. (Note: This option would only allow Mac clients to access the AirPort Disks. If you want both Macs and PCs to connect, you would need to leave this field at its default value and enter the appropriate SMB ports to the mix of ports to be opened.)
In the Public UDP Port(s) and Public TCP Port(s) boxes, type in a 4-digit port number (e.g., 8888) that you choose. In the Private IP Address box, type the internal IP address of your AEBSn that you wrote down in step 1. In the Private UDP Port(s) and Private TCP Port(s) boxes, type 548. Click Continue.
In the Description box, type a descriptive name like "AirPort Disk File Sharing," and then, click Done.
Click on Update.
To connect to the shared AirPort Disk from a remote location using a Mac:
From the Finder > Go > Connect to Server.
Enter the DynDNS-provided Domain Name or Pubic (WAN-side) IP address of the AEBSn, followed by a colon and the Public port number that you choose in step 11 of the previous procedure. For example: afp://www.mydyndnsdomain.com:8888 or afp://123.456.789.123:8888
Click Connect.
You should be prompted for your user name and password. The user name can be anything you like; the password should be the Disk password for the AEBSn that you created in step 6 previously.
Click Connect.

Slow transfer from/to SMB share over Airport

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