Query about Nokia bt v3.0 transfer speed

well, i have nokia c7 and nokia 701 which support bt v3.0
and nokia 110 which has bt v2.1
as we know bt v3.0 has hig transfer speed but i dont see any difference when i send a 3gp video(2.6mb) from nokia 701 to nokia 110 and same video from Nokia 110 to Nokia 701, both took 16 seconds.
then i sent same video(2.6mb) from Nokia 701 to nokia c7 and it took same 16 seconds, it should take less time as both devices has bt v3.0
Solved!
Go to Solution.

You achived 1.3 Mbit per second. Actually, you are at enhaced data-rate already (+EDR). That is fast. However, to get WLAN speed, all devices have to speak +HS, that is true.

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Query about Nokia Messenging Always On

I have Nokia Messenging installed on my X6 with the access point on Internet. My first priority in my wireless LAN which is fine but out of it's range it'll switch to my pay as you go internet access which is priority two. This is normal. My query is, does it cost me money having the access point open or is it just when I'm receiving/sending data? I'm on a Vodafone PAYG tarriff.

The flash being stuck on is generally a sign that the phone has been damaged either by a drop, water or other form of moisture.
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Transfer speed and other minor bits

First off - I love my iPod (40g Colour) and despite my regular bouts of impatience when updated, loading etc I am very happy with the thing. I even bought my wife a shuffle and she likes that for when she's at the gym. I found the software/hardware to be very forgiving.
However I thought I'd post a query to see if anybody had any ideas on my minor problems.
1) When we loaded my wife's shuffle for he first time we had problems with the USB 2 convection. PC keeps saying "this item can run faster connect to a USB2 ....." but it is connected to a USB 2 socket. Now everytime I attach either iPod the same warning comes on (except if I connect before starting!). I know its a USB 2 because a new board was fitted a while ago and my 40g will synch and charge on the connection.
2) Slow transfer. I recently loaded iTunes 5.0 which didn't work for me (see 3). So I wiped it and loaded a copy of 4.9 (thanks to filehippo). Im up and running again but had to re-synch my iPod to iTunes. The tranfer rate is about 500 tracks per hour so to do the 8500 that my iPod takes needs 17 hours. When its done I should'nt need to do it agin for a while but could I speed things up a bit?
3)Should I go to iTunes 5.0.1? 5.0 loaded on my PC fine without all teh problems that have filled these oages recently but when in 5.0 I connected either iPod (shuffle or 40G I got an error somthing like "Ipod not recognised re-intall iTunes". I know some other people had a similar problem. iTunes 4.9 is working fine but is it safe for me to try 5.0.1 yet?
Sorry to go on a bit but I know from watching these forums recently there are some very knowledgeable and helpful people out there so I hope you don't mind my request.

I've had some news - most of it good. I got fed up with the transfer speed so I took my box into my local store to get it checked out. No visible fault on my USB 2.0! I know it happens but they couldn't replicate it so I went home. Plugged all my stuff in except USB devices. Plugged in my iPod and it worked. I was now thinking about power requirements etc. Plugged in my USB modem and the iPod still updated at USB 2.0 speed. Next I tried my wife's shuffle - so far so good. I then plugged everything in and the iPod defaulted back to USB 1.1!
Tried the shuffle in the spare USB2.0 socket and it worked. Plugged my iPod in and that worked - Now I knew what the problem was - I only have 3 USB 2.0 sockets (5 USB1.1)and two had faulted.
Next step will be a new card with a fire wire socket! Happy Days - although I still cant get an extension cord to work with my iPod.
While I was on a roll I took the bull by the horns and loaded iTunes 6.0. Works like a dream although it is a bit slower than 4.9 - probably considerably bigger but it works!!
My turn to be the lucky one this week!!! Maybe your turn next.

External hard drive, error -36, corrupt files and slow transfer speeds

This is a long post but stay with me.
I've got an external 250GB Lacie drive connected to my 24" Intel iMac via Firewire 800. I have approximately 80GB worth of files (including my iPhoto library) on the Lacie that I'm trying to move over to my iMac but have run into some frustrating problems.
Overall, transfer speeds are erratic – fine at times and SUPER SLOW (5 minutes to transfer a 3MB file) at other times. At first I was transferring entire folders, but after always getting errors (error -36 to be exact), I was having to transfer individual files. This works fine as long as the files aren't too big (which makes the transfer speeds SUPER SLOW) and not corrupt (which gets me an error -36). Is my Lacie crashing on me? Is there any hope?
Here's what I've done to try and salvage my sanity with no resolve to my problems (not exactly in this order):
1) Ran Disk Utility to repair Lacie. Everything came back OK
2) Ran Disk Warrior on Lacie. Found a handful of bad items that Disk Warrior was able to repair. Had Disk Warrior replace the old directory of the Lacie with the new directory.
3) Ran Drive Genius: Raired and Rebuilt the directory, did an Integrity Check (came back OK), attempted to Defrag but could not because of errors to the drive, did a Scan for bad blocks (which after running for 3 days! it was only 20% complete and had found over 150 bad blocks, at which point I quit to try something else)
4) Checked that my Firewire cable was properly connected and replaced the older one I was using with a brand new one.
5) Disconnected all peripherals except for keyboard, mouse and Lacie.
6) And at times, even viewing a file on the Lacie has caused my Finder to crash, requiring a restart of my iMac.
I'm sure I've left something off I've tried but you get the idea.
I've read that maybe I can transfer my files using Terminal. Yes/No? Does this bypass any corruption the files may have?
What about creating a second partition on the Lacie and moving files over to the second partition? Does this solve anything? I don't know anything about partitioning so maybe I'm talking crazy.
I've also read that iPhoto tends to corrupt files which makes me hate iPhoto, and myself for not backing up.
And I've read a lot about error -36's and none of it sounds good so I'm just hoping that someone might have other suggestions for me to try and save my files (especially my iPhoto files which include baby pictures that if I lose, my wife will kill me).
So if anyone has any ideas, let me know. Please. I'll try anything.

Hi Aaron Thompson-
I am fairly certain you have a bad power supply brick to the LaCie drive. This is a hard problem to troubleshoot as generally when the bricks go bad they do so slowly and the drive appears to power up and stuff but it just doesn't work.
If the drive is under warranty LaCie will replace the brick at no charge. Otherwise they sell them for around $20US on their website.
Luck-
-DP

Very slow network directory listing - but fast data transfer speed once listed?

Hello,
I have really tried to sort this myself before opening up to the community, however I have run out of ideas, and hope someone can offer the magic solution I have missed.
I am currently using the 3.4ghz i7 iMac on a 1GB LAN, running OSX10.7.2 - connecting to a Windows Server 2008 (Running Release 2) over ethernet.
If i go to a network directory that i haven't recently accessed it can take up to 60 seconds to show the contents of that directory. Once i have accessed that folder, if i come out of it and go back in it will be instant again - but the first time it lists the directory it looks like i have opened an empty folder - which after anything from 10seconds to 1 minute will suddenly show the files that are there.
Internet connectivity is fast through the network, and file transfers across the LAN are fast. (showing as approx 300mb per second) I can play and edit HD content across the network with no slowdown so I am confident that this issue is not related to the network speed itself, and is more to do with a setting on this mac.
Symptoms are very similar to this post: https://discussions.apple.com/message/12245148?messageID=12245148&amp%3b#1224514 8 - however i understand that in OSX Lion - SMB was removed - so i cannot find this file to edit.
I have tried bypassing additional hubs in the network by wiring direct cables to the switch that is connected to the file server, this made no difference.
I have also tried disconnecting the ethernet cable, and running over wifi. This fixes the listing problem, but when editing HD content over a network drive, this connection is not fast enough to carry the data without interruption (some projects are linked to up to 900gb of hd video content!)
Using ethernet, I have tried DHCP, DHCP with manual address, and manual mode. All reproduce this problem. i have tried using the windows workgroup, and tried without it.
I have also followed this suggestion: https://discussions.apple.com/thread/2134936?threadID=2134936&tstart=45 and used OpenDNS. this did not fix the issue.
For argument sake, I have also just tested a Macbook Pro running Snow Leopard to see if it was OS related. This reproduces the exact same problem, near instant directory listing on the wifi, a long and arduous wait on ethernet.
I cannot work out why directory listing is instant over wifi, but not over ethernet on 2 different macs, running 2 different versions of OSX. I also do not understand why if the network is having trouble listing the directories - the data transfer speed is 300mbps when i copy files across the wired network from the file server to the mac.
Does anyone have any other ideas as to what could be the problem here? We are about to start work on a very large project, where the content we are editing is spread out across around 200 different network folders (different shoots captured over the past 2 years). We really don't have the time to wait 60 seconds each time we need to access one of those directories to look for a file, and I am very close to pulling all my hair out!
I really look forward to hearing from anyone who can offer any insight.

If you are suspecting that the Windows update had something to do with your LAN going slow, then try the following:
1. Look for updates for your clients LAN NIC driver; or
2. Un-install the updates.

Very slow transfer speeds with external hard drives through Firewire and US

Hi All,
My external drives transfer very slowly on my MacPro. I've been searching for answers and have turned up very little. Apple support suggested I post my issue here. Just to make a note, I measured my disk speeds with both AJA System Test and copying files between drives and reading the Disk Activity in Activity Monitor.
I have 3 external drives, all MyBook Premium or Professional, 1x 500GB, 1x 1TB and 2x 1TB in RAID 0. I had them on Firewire 400 and the RAID 0 2TB one on Firewire 800. My transfers on FW were all around 24MB/sec on all drives (much less than what I should be getting with FW400). I then read somewhere that the FW bus on the MacPro uses the slowest speed connected for all FW connections. So I unplugged everything but the FW800 Raid 0 drive and my transfer rate jumped to 40-60MB/sec. This is much better, but still about half or so of what I expect it should be producing from an external RAID 0 setup.
To keep my FW800 backup drive faster, I've plugged the other two into USB2.0. The transfer speeds on both drives are now hideous, around 10-15MB/sec. This is so slow, but I'm not sure what to try to fix my speeds.
The HD's in the external drives are all 7200rpm, and all should be transferring at a higher rate. Do you have any suggestions or ideas? Ideally I'd like to get everything transferring at rates they should be transferring at, but I'll settle with my current FW800 speed of 40-60MB/sec if I can get my other two drives transferring at a non-snail pace.
Is this a common issue? I can't believe I'm the only one plugging multiple external hard drives into their Mac Pro. I hope someone has a fix or solution for this. I'm all ears!
Thanks in advance.

Hi Kappy, thanks for the information.
So I rejigged my setup a tad. My RAID 0 is still FW800, the second drive is back on FW400 on the back port, and the third is USB 2.0 on the back as well.
It's interesting to note that I saw the FW800 taking a bandwidth hit if the FW400 drives was being read/written to. For example, if I was averaging 50-60MB/sec on the FW800 drives and copy something large to the FW400 drive, each drive averages out to about 30/MB second, roughly half the FW800 speed I was getting. The USB while the slowest didn't cause any slowness on the FW drives.
Here are my Xbench results. These results are from each drive being benchmarked individually with no other drives being tested at the same time.
*MyBook 2TB in a RAID 0 configuration: Firewire 800*
Results 75.42
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD My Book
Disk Test 75.42
Sequential 80.92
Uncached Write 69.16 42.46 MB/sec [4K blocks]
Uncached Write 110.79 62.68 MB/sec [256K blocks]
Uncached Read 53.66 15.70 MB/sec [4K blocks]
Uncached Read 136.76 68.73 MB/sec [256K blocks]
Random 70.62
Uncached Write 36.38 3.85 MB/sec [4K blocks]
Uncached Write 140.55 45.00 MB/sec [256K blocks]
Uncached Read 93.26 0.66 MB/sec [4K blocks]
Uncached Read 88.38 16.40 MB/sec [256K blocks]
*MyBook 1TB on Firewire 400*
Results 47.73
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD My Book
Disk Test 47.73
Sequential 52.47
Uncached Write 48.45 29.74 MB/sec [4K blocks]
Uncached Write 53.76 30.42 MB/sec [256K blocks]
Uncached Read 43.69 12.79 MB/sec [4K blocks]
Uncached Read 70.91 35.64 MB/sec [256K blocks]
Random 43.78
Uncached Write 17.29 1.83 MB/sec [4K blocks]
Uncached Write 98.83 31.64 MB/sec [256K blocks]
Uncached Read 76.33 0.54 MB/sec [4K blocks]
Uncached Read 97.01 18.00 MB/sec [256K blocks]
*MyBook 500GB on USB 2.0*
Results 40.60
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD 5000AA External
Disk Test 40.60
Sequential 35.99
Uncached Write 37.31 22.91 MB/sec [4K blocks]
Uncached Write 37.22 21.06 MB/sec [256K blocks]
Uncached Read 26.62 7.79 MB/sec [4K blocks]
Uncached Read 50.27 25.27 MB/sec [256K blocks]
Random 46.55
Uncached Write 20.37 2.16 MB/sec [4K blocks]
Uncached Write 68.44 21.91 MB/sec [256K blocks]
Uncached Read 93.55 0.66 MB/sec [4K blocks]
Uncached Read 86.71 16.09 MB/sec [256K blocks]
So Kappy are you saying that those speeds look normal?
Thanks

External firewire hard drive reverts to slower transfer speeds

This is the strangest hardware problem I've come across. I'm running a unibody mbp (June 2009) with an external WD 2.0TB Caviar Green drive mounted in a firewire 800 enclosure made by icydock.
Lately, I've noticed that after an unknown amount of uptime, the speed of file transfers to the WD external drive slows down dramatically. I figured this out by watching my time machine transfers take a bit longer after awhile, and I verified this using aja system test and speedutilities.
When I boot my mbp in the morning, file transfers and time machine backups to the external WD transfer at a rate of about 67-75MB/s. This is the speed the drive should always be working at since it's connected via firewire 800. Aja speedtest verifies the speed is as it should be as well.
Then, after a couple hours of using my mbp, or even later in the day, I'll transfer a file to the external WD or run a time machine backup and find that the transfer will only run at a max of 29-35MB/s. This is exactly half the speed the transfer should be going at. Subsequent transfers stay at this slower rate no matter what I do.
However, I've been able to fix this problem by unmounting and remounting the external WD or restarting my mbp. After doing either of these actions, the WD external goes back to contant transfers at 75-80Mbs. So something is happening where the longer the mbp is running, or after some sort of disk activity, the external WD reverts to a slower transfer speed (closer to FW400). I can't isolate whether it's an issue on the mac os side or the hard drive or the hard drive enclosure because I can make the hard drive go back to optimal speed again merely by unmounting and remounting it. This works consistently until a few hours later when the drive begins to handle transfers at half speed again.
I run hourly time machine backups to the drive. The time machine backups can't be the culprit because the drive remains running at optimal speed after the backups (verified with aja system test and speed utilities)
Any possible ideas as to why the drive cuts down to half its optimal transfer rate after a bit of time? I can't figure out the cause of this, and the consistency of the drop leads me to think this is an issue with the power management on the drive since it reverts to full fw800 speed when I umount and remount the drive or restart my computer. Could this be an OSX issue where for some reason the system isn't negotiating the fastest speed?
Any help appreciated.

From the SoftRAID manual:
Fire hubs and disk drives. FireWire hubs are notorious for introducing errors and instability onto the bus.
Make sure that all of your consumer electronic devices (iSight, cameras, scanners) are connected to a separate FW bus. These devices are not built to the same standards as storage devices and known for introducing errors onto a FW bus.
Cables. While most cables work fine with a single device, many cables will introduce errors when 2 or more disks are connected to the bus.
http://www.softraid.com
http://www.softraid.com/demo.html - manual and demo
Output can be to any drive or partition. When you lauch iMovie it asks where to store your project.
I just bought a camera, and curious myself to see if I can take 10 minute clips and use iMovie/iDVD so that it will auto-play. I may end up buying Pogue's "iMovie Missing Manual" or something.
iMovie Discussions

How do I fix the slow transfer speed over USB on my 24" iMac?

I am backing up/cloning with SuperDuper, and running Lion. The displayed transfer speed never gets past about 20mb per second. Painfully slow.... Any suggestions?

Actually that's pretty good for USB. USB is slow - there is nothing you can do about it. Firewire always has been faster. Personally, I only use external Firewire drives for cloning or backing up. Even then, if it's a fresh clone, it'll take moe than an hour for 160 GB.
So, I schedule it when I have other things to do and walk away until it's done.

WRT350N - Transfer speed via Storage link

I have always been curious what the transfer speed others get while using
a USB 2.0 hard drives on their WRT350N.
Obviously there is going to be a drop in transfer speed using storage link but 2-3 Megabyte seems slower then I would expect. I don't thnk I have ever seen much about 3MB.
I see the same performance wirelessly (connected at 270mb) and hardwired into the gig ethernet port.
Just wanted to get some other peoples results.
Message Edited by GAH1068 on 01-17-2008 02:04 PM

It was on both systems. However, I did get it working. Not the way I liked, but it works. What I expected to see was the device hung off the network. That is like another computer. This *is* happening, but where I was confused was the access to it. On other shared resources I can open it at will with no special access rights needed. I'm talking about printers and files on other computers on the network. It turned out to access the Storage Link I had to actually provide a USER ID and PASSWORD before I could use it. Why I couldn't get access before was I had HTTP:\\192.168.1.1 already open in my browser so any other attempts via the web browser used the existing connection. Not until I saw a forum message that said use START=>RUN and enter the IP address or UNC name was I able to connect to it. Since I now know this, a simple bat file with some NET USE's should fix the problem of getting access. Compounding my problem is how I've chosen to manage the network and shares. I use Network Magic, and it can NOT see the Storage Link at all. Anyway, I now know how to access the Storage Link. I was using a Flash drive for testing. I'll next put a USB External drive on and try that out. My ultimate try will be a USB hub and 4 external drives and hopefully I'll have access to all 4 drives to all computers. Irv S.
Thanks,
Irv S.

Transfer speed of USB vs Gigaport attached drive WRT610N

I know this is a loaded question but here goes: Assumptions: eqivalent drive specs but one is connected to the USB port of a 610N and the other is connected to the gigaport of the 610N which drive should have the fastest throughput and approximately by what % margin?
The reason that I am asking this question is that I did a backup of about 40GB to a Seagate drive attached to the USB port and it TOOK FOR EVER!!!!!!!!!!!!!!
I have a gig capable drive on order and am praying that the performance will be much better than the USB drive.

What is the speed you are getting from the USB Port..?
I think you need to make some changes on your Wireless router, so the Download and upload speed improves.
Open an Internet Explorer browser page on your wired computer(desktop).In the address bar type - 192.168.1.1 Leave username blank & in password use admin in lower case...
For Wireless Settings, please do the following : -
Click on the Wireless tab -
This settings are for 2.4GHz.
-Here select manual configuration...Wireless Network mode should be mixed...
-Provide a unique name in the Wireless Network Name (SSID) box in order to differentiate your network from your neighbours network...
- Set the Radio Band to Standard-20MHz and change the Standard channel to 11-2.462GHz...Wireless SSID broadcast should be Enabled and then click on Save Settings...
Please make a note of Wireless Network Name (SSID) as this is the Network Identifier...
For Wireless Security : -
Click on the Sub tab under Wireless > Wireless Security...
Change the Wireless security mode to WEP, Encryption should be 64 bits.Leave the passphrase blank, don't type in anything...
Under WEP Key 1 type in any 10 numbers please(numbers only and no letters eg: your 10 digit phone number) and click on save settings...
Please make a note of WEP Key 1 as this is the Security Key for the Wireless Network...
Click on Advanced Wireless Settings
Change the Beacon Interval to 75 >>Change the Fragmentation Threshold to 2304, Change the RTS Threshold to 2304 >>Click on "Save Settings"...
Now see if you can locate your Wireless Network and attempt to connect, and after this try Downloading and Uploading on your Storage Drive and check whats the speed you are getting
Same goes for your 5GHz Wireless Network.
Wireless Network mode should be mixed...
-Provide a unique name in the Wireless Network Name (SSID) box in order to differentiate your network from your neighbours network.
Set the Radio Band to Wide-40MHz and change the Wide channel to159 and Standard Channel to 161-5.805GHz...
For Wireless Security : -
Click on the Sub tab under Wireless > Wireless Security...
Change the Wireless security mode to WPA, For Encryption, select AES...For Passphrase input your desired WPA Key. For example , MySecretKey , This will serve as your network key whenever you connect to your wireless network. Do NOT give this key to anyone and remember the key.
NOTE : Passphrase should be more that 8 characters...
Try and see how is the data transfer speed.

Internal Disk to Disk Data Transfer Speed Very Slow

I have a G5 Xserve running Tiger with all updates applied that has recently started experiencing very slow Drive to Drive Data transfer speeds.
When transferring data from one drive to another ( Internal to Internal, Internal to USB, Internal, Internal to FW, USB to USB or any other combination of the three ) we only are getting about 2GB / hr transfer speeds.
I initially thought the internal drive was going bad. I tested the drive and found some minor header issues etc... that were able to be repaired so I replace the internal boot drive
I tested and immediately got the same issue.
I also tried booting from a FW drive and I got the same issue.
If I connect to the server over the ethernet network, I get what I would expect to be typical data transfer rates of about 20GB+ / hr. Much higher than the internal rates and I am copying data from the same internal drives so I really don't think the drive is the issue.
I called AppleCare and discussed the issue with them. They said it sounded like a controller issue so I purchased a replacement MLB from them. After replacing the drive data transfer speeds jumped back to normal for about a day maybe two.
Now we are back to experiencing slow data transfer speeds internally ( 2GB / hr ) and normal transfer speeds ( 20GB+ / hr ) over the network.
Any ideas on what might be causing the problem would be appreciated

As suggested, do check for other I/O load on the spindles. And check for general system load.
I don't know of a good GUI in-built I/O monitor here (and particularly for Tiger Server), though there is iopending and DTrace and Apple-provided [performance scripts|http://support.apple.com/kb/HT1992] with Leopard and Leopard Server. top would show you busy processes.
Also look for memory errors and memory constraints and check for anything interesting in the contents of the system logs.
The next spot after the controllers (and it's usually my first "hardware" stop for these sorts of cases, and usually before swapping the motherboard) are the disks that are involved, and whatever widgets are in the PCI slots. Loose cables, bad cables, and spindle-swaps. Yes, disks can sometimes slow down like this, and that's not usually a Good Thing. I know you think this isn't the disks, but that's one of the remaining common hardware factors. And don't presume any SMART disk monitoring has predictive value; SMART can miss a number of these cases.
(Sometimes you have to use the classic "field service" technique of swapping parts and of shutting down software pieces until the problem goes away. Then work from there.)
And the other question is around how much time and effort should be spent on this Xserve G5 box; whether you're now in the market for a replacement G5 box or a newer Intel Xserve box as a more cost-effective solution.
(How current and how reliable is your disk archive?)

Sudden drop in transfer speed

I have been trying out a WRT1900AC router for about a week and just developed a MAJOR drop in speed from the router to the computer while doing a file transfer:
This thing has been sending files to and from the router's esata and USB3 port at over 50 MB/s until just now.
I can still write to the drives attached to the router at 50MB/s + all day long. Getting files from the drives have suddenly dropped to 300Kb/s on the esata and the USB3 ports
Tried rebooting/powercycling the router, disconnected the drives and reconnected them, same result.
Anyone else run into this?
Funny, I just got done posting in another thread how fast this thing moved files to and from external storage. Now this,,,,,,
Maybe the universe is telling me not to keep this router?

1. What file sizes do you usually transfer? What are the file types?
For testing I used larger files (IE: ISO files, larger zipped files, etc.) rather than just copying folders or small files.
2. Are the files being transferred to and from your computer and a storage drive (hooked to the WRT1900AC)?
Files were moved all over: from a WD Mycloud (hooked up to 8 port gigabit netgear switch) to my computer. Also have a Toshiba 1TB USB3 drive plugged into the WRT1900AC USB3 port and an older WD 2 x1TB enclosure hooked into the WRT1900AC via the eSATA port. For testing I moved files all over the place: From the Esata to the computer, to the USB drive, to the WD Mycloud and back again. Also mixed up going from point A to B, then from point C to point B, etc. In all cases the slowest speed I get is 50MB/s + with some transfers topping out at 90MB/s!!!
3. If it's a storage drive, does it have USB3 ports as well?
Yes
4. What is the link speed of your computer?
Wired Gigalan
Routers do not usually need to be rebooted every now and then. They should be running 24/7. My guess is, the wired or wireless adapter may have adjusted speeds consequently dropping file transfer speeds.
Agreed. I can count on one hand how many times I had to reboot my last router over the 2+ years I had it.
Heres the other thing: the need to reboot is not just associated with file transfers. I get the "cant connect with the WRT1900AC" message just going into the user interface from time to time as well as being unable to see storage folders in Windows explorer from time to time. In these cases I can still go online, surfing and doing whatever. The router (according to the Smartlink page) just seems to disappear. Which doesnt make sense since if the router cant be seen online, how is it that I can still go online?
Anywho, I still have this week before I lose the ability to return/exchange it at Best Buy. Will see how things go.
And thanks for the reply and suggestions,,,,,,,,,,

Transfer speed to Airport Disk?

I have a 300GB LaCie connected to the USB2 port on my Airport Extreme Base Station. So far, this arrangement seems to be working fine in Leopard--but I'm wondering if the data-transfer rate is abnormally slow.
I have the Wireless Radio Mode set to 802.11n (802.11b/g compatible) (unfortunately, I can't go 802.11n only, or my TiVo can't connect), and the iMac I'm on is only a few feet away from the Base Station. I'm transfering a 3.5GB iMovieHD file from the iMac to the 300GB LaCie right now, and the total transfer time is about 42 minutes. Does this seem normal?

There's a bit of confusion in this thread about speeds.
Data transfer speeds are sometimes given in MegaBITS per second Mb/s and sometimes given in MegaBYTES per second MB/s. (it's easy to get them confused)
The Airport Extreme's wireless is rated at 270Mb/s.
That number does not reflect real world use (but all manufacturers use the theoretical value) What it means is that this is the maximum number of bits per second going in both directions including all the overhead stuff.
What is the maximum real world speed? In the real world the best speed you'll see copying a file from one place to another is 10MegaBYTES per second. This is very fast wireless very similar to wired ethernet. It can only be achieved when the Airport is set to 5GHz radio mode.
The USB hard drive does not achieve this speed. The CPU in the base station struggles to cope with files systems and the drive. So reading and writing you get between 3 and 6 MegaBYTES per second. The same drive would be 4 or 5 times quicker if it were plugged into your computer.
Using a NAS is faster. But this is plenty fast enough for streaming HD videos.
Jon,
Your speed is about half the regular speed for copying. Not massively slow but slower than I'd expect.
Try connecting at 5GHz n-only.
And use the graph device in Airport Utility to see if you have a poor signal strength.

Regarding Transfer speed in Cisco Any Connect

Hi,
I was trying to check transfer speed from Cisco Any Connect, with only ports opened in firewall 443 & 80 with 1 destination , but to complete data transfer of 50MB file it takes around 40mins, but if all ports are unblocked in Firewall with 1 destination ,it takes only 9mins.
so wanted to know the correct port numbers which needs to be opened to make data transfer speed fast & why this behaviour.
Please somebody help me.

a customer has confronted me with a similar issue. They are using AnyConnect SSL Clients in their LAN, and noticed a severe performance drop on client side once connected via AnyConnect. I have set this up in a lab environment to compare LAN performance with AnyConnect SSL performance.
Win7 Client
AnyConnect ASA5520 Win7 iperf Server
Secure Mobility -----------1Gb LAN---------------- v9.1.1---------------------1Gb LAN-------------------- TCP Window Size 4MB
3.1.02040
The ASA was configured from factory default and there was no traffic passing besides this test. AnyConnect used DTLS, and interface mtu on the ASA was 1500, the AnyConnect mtu was left unmodified, so I suspect the maximum of 1406 bytes was used.
Result:
- While AnyConnect was disconnected, Iperf reported bandwidth usage of about 300Mbps. This was what I was expecting.
- As soon as I was connected via AnyConnect, the bandwidth usage dropped tp about 80Mbps. I expected a slight drop, but not this much.
What causes such decrease in performance? Sure, if connected via the Internet, clients will most likely never notice this, but the customer uses AnyConnect SSL in a Gigabit LAN environment. Could the bottleneck be on the client side? The load and memory usage on the ASA side was very low. I have tried several ASA versions, but they all deliver similar results.

Transfer speed in Target Disk mode

This may not be a question as I am not even interested in the "why" any more.
My MBP (2.0GHz, 2GB Ram, 7200rpm HD, Week 15) is in target disk mode, and I am copying my Aperture Library (50GB) over to my PowerMac G4 via firewire. Obviously the firewire ports on both sides are Firewire 400, but the file transfer speed appears to be noticeably slow compared to a similar transfer between my external hard drive and the PowerMac G4.
When I copy over the exact same library (50GB, about 40,000 files according to Finder) from the external HD to the PowerMac, it takes less than 40 minutes. Now between my MBP and PowerMac G4, Finder estimates more than 2 hours.
I am curious why this is the case when both the external HD and my MBP have 7200rpm drives. Has anyone noticed this too?

Disks aren't (usually) rated by read/write speed, at
least not by the manufacturers. They sell by
capacity.
You’re kidding, right? Drive manufacturers specify transfer rates, average, minimum and maximum seek times. Rotational latencies and cache buffer sizes. All these parameters are direct measures of performance, and people who design and build systems pay close attention to them. I know I do. I’ve been putting 10,000 RPM Ultra-160 and now Ultra-320 SCSI drives and dual-channel SCSI adaptors in my Linux desktops for several years, now. These parameters have a large effect on performance, obviously.
It's not a question of 'consider', it's a question of
verifiable fact - data on the inner part of the
spindle cannot be written or read as quick as data on
the outer part. …
If you cannot tolerate the minimum speeds, then you cannot use that part of the drive. If you’re going to use the full capacity of the drive, you won’t get the speed. You are forced to de-rate the drive one way or the other.
That’s what I’m saying.
In other words, if you’re going to use the whole drive, then you’re going to get the speeds you get. Avoiding filling it is not really an option, is it?
Randall Schulz

Query about Nokia bt v3.0 transfer speed

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