Very slow download speeds with ATT U-Verse

Hello,
Experiencing very slow download speeds with Macbook Pro 2011, on Lion, and ATT UVerse Max, which should allow for an avg. 11-12 MBPS speed. Instead, I get a fluctuating 60-370 kbps speed. I am not experiencing this problem on my Windows machines (Laptop running Windows 7 and Desktop on XP), it is only affecting the Macbook pro. I wonder if this issue is a known problem with ATT U-Verse and Macs, I spent hours yesterday with their support online and they couldn't help me, stating that from their side all settings were OK; the first representative from ATT re-booted the router remotely and that seemed to work for about 10 minutes, and then it went back to a crawling speed...
Any suggestions welcome!
Thanks

Do you have QOS enabled in your router? Did you try plugging the win7 laptop directly and check the speed?

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Very slow download speed with intermittent halts

Need some help.
I run Apple os/x latest version and have since yesterday begun to experience constant very slow download speeds.
I have rebooted the router and I have reset it. I have tested with wireless and wired into router. No real change.
The results are below and are pretty consistent no matter when or with what computer I test it with.
This is very frustrating and I would like to know if anyone has experienced this and if there is anything I can do before calling for service.
Thank you in advance.
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
SendBufferSize set to [131768]
running 10s outbound test (client to server) . . . . . 5.44Mb/s
running 10s inbound test (server to client) . . . . . . 1.94Mb/s
------ Client System Details ------
OS data&colon; Name = Mac OS X, Architecture = x86_64, Version = 10.8.2
Java data&colon; Vendor = Apple Inc., Version = 1.6.0_37
------ Web100 Detailed Analysis ------
Client Receive Window detected at 359104 bytes.
10 Mbps Ethernet link found.
Link set to Full Duplex mode
Information: throughput is limited by other network traffic.
Good network cable(s) found
Normal duplex operation found.
Web100 reports the Round trip time = 22.89 msec; the Packet size = 1448 Bytes; and
There were 159 packets retransmitted, 288 duplicate acks received, and 394 SACK blocks received
The connection stalled 9 times due to packet loss
The connection was idle 2.01 seconds (16.75%) of the time
This connection is sender limited 35.49% of the time.
This connection is network limited 64.51% of the time.
Excessive packet loss is impacting your performance, check the auto-negotiate function on your local PC and network switch
Web100 reports TCP negotiated the optional Performance Settings to:
RFC 2018 Selective Acknowledgment: ON
RFC 896 Nagle Algorithm: ON
RFC 3168 Explicit Congestion Notification: OFF
RFC 1323 Time Stamping: ON
RFC 1323 Window Scaling: ON
Information: Network Middlebox is modifying MSS variable
Server IP addresses are preserved End-to-End
Information: Network Address Translation (NAT) box is modifying the Client's IP address
Server says [71.100.xxx.xxx] but Client says [192.168.1.9]

Both wired or wireless.
auto - negotiate
Thank you.

Very slow download speed with Airport Express

Hi.
I've recently experienced painfully slow downlink (download) speed using Airport Express.
My WiFi configuration:
- main router: WRT54G connected to my provider (speed limit: 4Mbit up/down link),
- AirPort Express with WiFi N and Airtunes hooked up to stereo in living room,
- AirPort Express WiFi G and Airtunes connected to stereo on bedroom.
Second Airport is currently not used to simplify tests and description of my problem.
The problem: when connecting from MacBook to Airport Express I can't reach more than approx. 512kbit downloading from internet, usually even 300kbit, while uplink reaches easily 2.5Mbit (limited probably by my network provider). While connected to WRT54G I can get 2.5 up to 4Mbit downlink, same when using cable directly plugged in to WRT54G.
I tried changing channels, switching different options in Airport with no effect - still getting pathetic download speeds. Even worse - browsing experience is awful, with frequent slowdowns, etc.
I tried different encryption methods, and seems like only switching it off at all (unprotected network) seems to let my Airport work on full speed (2.5Mbits symmetrically up/down, up to 4Mbits - provider speed limit) - which is unacceptable, I refuse to set up and use unprotected network at home.
Problem is clearly in Airport or in interaction between Airport and Macbook. I've just ran out of ideas - can you help me?

I can't offer any help with your problem except for the fact that mine has recently done the exact same thing. It's ridiculous, for months and months it was extremely fast and then all of a sudden it takes 20 minutes to open a simple browser page. Something is definitely wrong with the airport because all other wireless internet connections from other routers are as usual. \

Very slow download speeds with new laptop with windows seven- WRT160N Router

Just bought a new Laptop with windows 7 and of course wireless. Download speeds are horrible (0.2 mbs) and upload speeds are normal for me ( 8mbs) Have a wrt160N Wire less router. Older laptop and desktop work fine with normal( around (8mbs) downloads and uploads.
How do I fix this?

Do you have QOS enabled in your router? Did you try plugging the win7 laptop directly and check the speed?

Very Slow Download Speed

Hi,
I am experiencing very slow downloading speeds, when I am just normally downloading something in Safari, or downloading a torrent with upto 100 seeders.
The maximum download speed I have seen on my computer is 80kb/s, which is painfully slow for downloading the Adobe trials, when they reach about 1gb.
I have a router, connected to 2 computers, and speedtest.net has told me that my download speed is 1mb/s.
It seems like download speeds are being restricted to 80kb/s, so is there any way to 'unlock' full potential downloading speeds?
Any help much appreciated!
-Ollie
Message was edited by: Ollie A

I think you're making the same mistake a lot of people make.
The maximum download speed I have seen on my computer is 80kb/s
Safari reports downloads in kiloBYTES per second, not kilobits, so that 80KB/s translates to about 640 kilobits per second.
downloading the Adobe trials, when they reach about 1gb
Really? 1 gigabit per second? I assume that's a typo.
speedtest.net has told me that my download speed is 1mb/s
therefore your downloads are progressing at about 64% of maximum. That sounds about right - you won't get maximum throughput for every download - it will vary based on server location, network load and more.

E1200 router: very slow download speeds, ok uploady got

I recently set up a new E1200 router to replace my old one. We are having problems with very slow download speeds (often <0.10 Mbps) even while the upload speeds are OK (8-10 Mbps). Our previous download speed over wifi was 10-15 Mbps.
When I first set it up, the download speed was very poor on the initial computer. After fooling around, it was fine. I don't know what I did that made it speed up. However, my wife's computer has had very poor download speeds. After rebooting my computer, the download speed has also dropped bak to <0.10. I was able to stream Hulu on my Wii just fine an hour ago.
What could the problem be?

So we could have this isolated, check how much speed you’re getting straight to the modem so we’ll have some point of comparison that from your internet provider. If through the router, you have struggles with not getting an acceptable value for download speed especially if it only happens with the wireless connection, you can try these: change the wireless channel and the wireless security on the router. If on the router, you have the channel set to auto by default change it to (3,6,9,11), just have to play around with it. Moreover, for the wireless security, select WPA2 Personal. If that doesn’t make any difference, update the firmware of the router, reset and have it reconfigured.

Why i have very very slow downloading speed on wifi on iphone5

While on wifi I am experiencing very slow downloading speed on iPhone 5. My iPhone 5 is a brand new phone, I have to wait for hours to complete a running download of about 40mb or so. Please help me and tell me if there is any solution to that. On the same wifi network I have the new iPad and iPhone 4 and iPhone 4S, all are working perfectly getting perfect speed while downloading but I can't on iPhone 5.

What you did was fine. Leopard is a little different to 10.4.11, but:
Repairing permissions is an important part of regular maintenance, and should always be carried out both before and after any software installation or update.
Go to Disk Utility (this is in your Utilities Folder in your Application folder) and click on the icon of your hard disk (not the one with all the numbers).
In First Aid, click on Repair Permissions.
This only takes a minute or two.
Background information here:
http://docs.info.apple.com/article.html?artnum=25751
and here:
http://docs.info.apple.com/article.html?artnum=302672
If you were having any serious problems with your Mac you might as well complete the exercise by repairing your hard disk as well. You cannot do this from the same start-up disk. Reboot from your install disk (holding down the C key). Once it opens, select your language, and then go to Disk Utility from the Utilities menu. Select your hard disk as before and click Repair.
Once that is complete reboot again from your usual start-up disk.

Help : very slow connection speed with AEBS and iMac

I connect to the internet using my newly purchased AEBS. I have a MacBook and an 24" iMac ( purchased in Nov 2007). My iMac showed very slow connecting speed of <1 MB/s download; with my MacBook placed just 1 foot from my iMac, the MacBook showed an amazing download speed of 20MB/s. If i connect the iMac to the AEBS using ethernet cable, it can get a very high speed.
So, where is the problem??
I am new to wireless, please help. I use iMac more than my MacBook at home.
Actually, i did not touch the any of the advance setting of the AEBS.

You know, I am experiencing the same problem. My wife's PC and iPhone are blazing fast, but my MacBook is accessing the internet at about dial-up speeds. Very frustrating and I haven't yet found the culprit.
Anyone???

Very slow download speed on ipad 2

Okay folks I need your help. I have just installed an Airport Extreme (newest model) wirless router and a new Motorola Sufboard modem and my interenet download speed is pretty good on the pc (23-25 Mbps). However, when I run the speed test on my ipad 2 it is pathetic (.14 - .18 Mbps). My iphone 4 is getting about the same download speed as well. I have reset all devices, tried forgetting the network and then signing on again, but nothing helps. What could be causing the slow download speed on the Apple products?

Okay I got it. I went into the Airport Utility and changed the channel selection from automatic to manual and then I changed the channel to something different. There are a lot of house in my neigborhood and I guess the default channel 6 was just way over crowded. Just did another test on my iphone4 and got a download speed of 18.33 Mbps. The ipad2 yielded a new speed of 24.24 Mbps. Much better now. Thanks!

Very slow transfer speeds with Airport Extreme and MacBook

I have been using a new Airport Extreme without problem at my home for the past six weeks. The speed and range was excellent with both my MacBook Pro and the MacBook which I purchased a few weeks ago. I came out to Greece with both laptops and a new AP Extreme box for my home network here. After set up I noticed that internet access was lethargic on the MacBook and file transfer between the two computers was extremely slow. The problem seems to be with the new MacBook (although it was working well in London). I've done some speed tests and the internet download speed is only 48 kpbs! I also notice that the range is very poor--in the room next to the router I am down to five bars. If I connect to the AP Extreme with cable I get the full 1Mbps I would normally expect here in Athens (ADSL nominal 2Mbps). The MacBook Pro has no problems with wireless access speeds or range, so I am assuming this has to be a problem with the AP extreme card in the MacBook. Is there anything I have overlooked? Perhaps something to do with setting up the new AP Extreme here in Athens?

By process of elimination I realised that the only cause of the sudden slowness must be software that I had installed recently. The only software I had added was a wifi utility to detect available networks--open or protected. Unlikely as it sounds, quitting the utility (which I had set to load on startup) made a dramatic improvement in performance.

More Than One Computer Trying to Access Web = Very Slow Download Speeds?

We have Verizon DSL with a basic Westell modem, which supposedly is only a modem with no router capabilities. We have an Airport Extreme Snow Base Station that acts as a WDS Main, with one other AEB Snow as a WDS Remote. All computers have unique ip addresses in the 10.0.1.X range as provided by the WDS Main's DHCP.
When only one computer connects to the internet to download web pages, software updates, etc., there seems to be no problem at all. When I do a speed check I get results that seem to be in the correct range, and it doesn't matter which computer I use for the test.
However, if we try to access the internet with more than one computer at the same time, everything slows to a crawl. Such as, if one computer is downloading software updates, the other CPUs have super slow web page downloads, slow to the point of connection time-outs at times. Or if two of the computers are simply trying to download web pages at the same time, one or the other has super slow downloads.
I feel like there is some kind of routing problem with the Base Station but for the life of me I cannot figure it out.
What could the problem be? Where could it originate, and what, if any, advice could someone give me to help trace the problem?
Thanks in advance.

... the one computer I am looking at right now shows DNS servers as 10.0.1.1, which is the internal ip address of the AEB. Could this be part of the problem?
That is normal and shouldn't cause a problem. Essentially it tells the computer to ask the snow AirPort base station (ABS) for DNS information. The ABS will then provide the DNS information which it currently received from the ISP.
Would it help if I manually entered the DNS numbers that appear on the AEB on each machine's Network Preferences?
Probably not. A busy DNS server or faulty DNS info won't affect download speeds. That only affects browsing since that requires the computer to convert human readable addresses to numbers that the computer can use.
Remember that the snow ABS only operates at 802.11b (11 Mbps) speeds. Then when you use WDS it cuts your available wireless bandwidth in half.

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

Very slow downloading webpages with Firefox 3.6.8; no problem with IE;

Firefox is very slow loading web pages. Was OK with the old version. This happened after I downloaded latest upgraded version 3.6.8
== This happened ==
Every time Firefox opened
== after loading new version of Firefox, 3.6.8

Not only do I have the snail version of firefox but I keep getting messages that Firefox can't find the server, or that it has times out. I have had to retry numerous times. I just had a problem with FF opening a one-page pdf. After what seemed like forever, I copied and pasted the url into IE and it opened almost immediately. After I read the pdf and downloaded it, I closed IE and saw that FF was still in the process of opening the page. I loved FF,but don't have time to wait until my next birthday to view/open a site. Incidentally, my birthdate is 07/11. This is seriously hampering my participation in two online graduate courses. I have been running Win 7 since March, but not had these problems until recent updates. I even had firefox set to notify me and ask before installing updates, but it was changed to automatically install updates when I just checked. I am the only user of this computer (live alone).
''' ALSO''', when I checked update history, there is an update for (3.6.4) that shows as successful that took place on '''Wednesday December 31, 1969.''' I don't believe that Firefox existed in 1969 or Internet Explorer for that matter. I couldn't highlight and copy the info in my history, but did copy with pen and paper. This is what was showing for the 3.6.4 update:
'''FireFox 3.6.4 (20100611143157)'''
Security Update
'''Installed''' on '''Wednesday, December 31, 1969''' 6:00:00 PM
Status The update was successfully installed
There is definitely something amiss unless the creators of FireFox have mastered time travel!
Since I do not have the time to open FireFox and check here to see if a solution to these problems has been determined (based on s-l-o-w performance of FF over the past week or so) would someone email me with a link that I can access through another browser, if necessary?
Email: [email protected]

Very slow download speed! help

My download speed has been very slow tonight for some reason. I should be getting near 20mb mark but only get just over a meg dunno why.
DEFORE
http://speedtest.net/result/1912333461.png
NOW
http://www.speedtest.net/result/1930302659.png
Here is my router settings
Line state:
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Connection time:
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Type:
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Modulation:
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Noise margin (Down/Up):
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0 / 0
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0 / 0
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Hi just been on my excharge on one of the link and its got a ?- broadband what does that mean?
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Very slow download speeds in Arch

Hello,
I'm using Archlinux on a Macbook(Core Duo) with Windows and Macosx also installed.
The problem with my Arch installation is that the download/internet speed is really slow ( 240KB/s ) compared to win/macosx (and also other linux live distros like partedmagic) where i have download rates of 2.0MB/s.
I tried to change some settings like disabling ipv6, without success. I also tested the Archlive CD, where i also had slow download rates. So it seems to be some specific setting in arch limiting my network, any ideas what could be the problem?
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dex
Last edited by dex (2009-10-13 17:42:47)

@Nezmer:
[root@lappi ~]# grep -i host /etc/rc.conf
# HOSTNAME: Hostname of machine. Should also be put in /etc/hosts
HOSTNAME="lappi"
[root@lappi ~]# cat /etc/hosts
# /etc/hosts: static lookup table for host names
#<ip-address> <hostname.domain.org> <hostname>
127.0.0.1 localhost.localdomain localhost
# End of file
i noticed the wrong entry in the hosts file and corrected it, now it looks like that, but no improvement in download rates:
[root@lappi ~]# cat /etc/hosts
# /etc/hosts: static lookup table for host names
#<ip-address> <hostname.domain.org> <hostname>
127.0.0.1 lappi.localdomain lappi
# End of file
@MadTux:
i have slow download rates no matter what browser or download-manager i use, changing the setting in firefox made no difference.

Very slow download speeds with ATT U-Verse

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