Anyone get a 300 Mbit link speed using 40 MHz (Channel-Bonding) on 802.11n?

I recently switched from a MacBook Pro 2.33 C2D 15 to a new MacBook Air 1.86 SSD... For some reason, one little persistent mystery that remains, is that I have been unable to get the Air to establish the link speed at 300 Mbit/s at 40 Mhz (Channel-Bonded). The best I can get is 270 Mbit/s, although my MacBook Pro consistently links at maximum. Signal quality is not an issue...
Anyone have an idea why? Can an Air owner out there confirm max link, or is this little gem incapable of 802.11n wide 300 Mbit/s?
Thanks to anyone who can shed light on this little puzzle...

Thanks for the reply.
First, you need your TC's 'Radio Mode' set to '802.11n only (5 Ghz)' - (I assume you do, since I don't think the 'Use wide channels' option should appear in any other mode...).
Now, the quick method to check Link Speed is in the 'Network Utility' Info tab...
Note that I don't have a major issue with my transfer rates, but do think it's an anomaly for a MacBook Pro to consistently link at 300 Mbit/s and my Air to refuse the same (max 270). In general, I would say that my Air exhibits (a bit) less sensitivity than the Pro with consistent wireless performance (i.e., I never had issues with the Pro acquiring and maintaining wireless links - the Air less so...).
Thanks for your help.

Similar Messages

  • Can anyone tell me how this link is used.  I noted it on my iPad.

    Can anyone tell me how this link is used.  I noted it on my iPad. mobi-service7.***/getfile.php?dtype=dle
    <Link Edited By Host>

    This is a known malware site:
    https://www.virustotal.com/en/url/16ffcd2699ffe17f14aefd48d09fa6789ac7bef1e981d1 4bc15b0b4241f078ce/analysis/1401447687/
    http://google.com/safebrowsing/diagnostic?tpl=safari&site=mobi-service7.com
    The malware on that site cannot affect your iPad. In fact, there is no known malware capable of infecting an iPad, unless it has been jailbroken (ie, hacked to allow apps from outside the App Store). The question is, where did you come across this site?

  • Speed issue with the AirPort Extreme (802.11n)

    Hi, I was wondering if anyone could help out with this.
    I am the Design Manager and IT Director at a publishing company where we have just upgraded to an AirPort Extreme (802.11n) base station to drive our network. We went this route as all of our machines are Mac Minis with built-in Airport and we were in a situation where re-doing a hardwire on the building was not going to be a possibility due to budget costs.
    Our new configuration seems to be running very well and has the following devices connected to the AirPort Extreme:
    Linksys Firewall Router (which was used on our old system and was requested by corporate to stay in the lineup to keep the static IP addresses we've already defined for our printers, VPN, etc. intact). The configuration on this part is modem to Linksys router to uplink port on the Airport).
    New Panther, Intel based Xserve connected to the Airport's Ethernet port 1.
    A 4 port ethernet switch connected to the Airport's Ethernet port 2 which drives four of our HP LaserJet printers.
    Ethernet port 3 is not occupied.
    All of the ethernet cords connecting our equipment are brand new.
    For the most part, everything's been running blazing fast with a remarkable speed increase over our old hardwired setup. However, I've received a few complaints about slow speeds when dragging and dropping and working with files that are stored on our Xserve - we get alot of the "spinning wheel" and the transmission speeds seem very slow.
    At present, we have several category 6 ethernet cords on backorder. I was planning on using one to take advantage of the gigabit ethernet capabilities between the Airport and the Xserve (as these are the only two elements of the network that support gigabit ethernet, besides the majority of our Mac Minis. Printers and cable modem are only 10-100 capable, so those will stand as is).
    Can anyone tell me if the gigabit ethernet cord will be the solution to this one slow aspect of the new network? Any other settings I could apply to possibly speed up the transmission time when moving files to and from our server? Good news is that every workstation in the house is getting a full 4 bars.
    Many thanks!

    PS, just wanted to point out that we are also running in bridge mode.
    Thanks!

  • If i purchase a new airport base station can I use my old airport extreme 802.11n (3rd Gen) as both an extender of my wife for multiple iphones and as a router?

    I operate an old airport extreme base station 802.11n (3rd gen).
    There are 4 iphone5's and 1 iphone4 on my network along with 2 laptops running 10.6.8 and 10.7 respectively as well as two desktops with the same configurations as the laptops.
    I get a sense that the iphones may/will be useless the new airport.
    Can I use the old base station (operating as an extender/bridge/router) so that older equipment will operate in the short term until they are upgraded?
    Thank you.  

    I get a sense that the iphones may/will be useless the new airport
    They will work fine with a new AirPort base station. You can use an iPhone or iPad to set up and configure the new base station. If you want to use a Mac to set up and configure the new AirPort, it will need to have at least Lion 10.7.5 installed. Mountain Lion 10.8 or Mavericks 10.9 could be used as well.
    Can I use the old base station (operating as an extender/bridge/router) so that older equipment will operate in the short term until they are upgraded?
    You can use the older AirPort base station to extend the wireless network. No updates will be needed to your iPhones or Macs.

  • Printing to Ethernet Printers Using Airport Extreme Base Station 802.11n

    I don't want anything extraordinary. I think what I have to set up is pretty simple.
    I have a PowerMac G5 tower and an Airport Network with an older 802.11g AExBS connected to my cable modem. I just acquired an AExBS 802.11n. While I'm sure that people would tell me to ditch the older one an just use the newer one, that is not today's task.
    All I would like to do is to use the AExBS for my 3 Ethernet printers. The printers are:
    Brother HL-2070N
    Brother MFC-420CN
    HP Color Laserjet CP2025dn
    Each printer is plugged into each of the 3 ethernet ports and not the WAN port. I didn't have any problems using my Netgear WGT624 wireless router, so I don't know why the AExBS is giving me such a headache. Is there something simply I'm missing in the instructions? Can anybody tell me if I'm missing something here?

    Now I have managed to delete all but my directly connected USB printers in the Print & Fax area of my System Preferences. What gives?
    I thought this was going to be straight forward. They don't even address hooking up ethernet printers in the manual. I've looked over the web and see other people having the same problem, but their original setup appears to be different and/or more difficult.

  • Anyone get message this iphone cannot be used because the applie mobile device service is not started?

    Plugged in my phone to sync and got this message "This iphone cannot be used because the Apple Mobile Device service is not started.  Does anyone know that I need to do?

    Did you try this? iPhone and iPod touch: How to restart the Apple Mobile Device Service (AMDS) on Windows

  • Anyone get this message in Safari? Using the Merrill Lynch site

    This is totally random. Using the Merrill Lynch financial site. Logged into my account.
    In getting stock quotes throughout the day. Then some days I get this error in Safari-
    Not enough storage is available to complete this operation.
    And I can't get any quotes any longer.
    Merrill Lynch say they haven't any idea. But to me the words used in the message sound so PC geek speak.
    I have tried emptying cache in Safari. I also set the default database to off. To 5MB. To 10MB. Nothing works from my end in Safari.
    I really feel it is a bug in the Merrill Lynch site. But thought I would post here just in case someone else has experienced this?
    And this only happens getting stock quotes on Merrill Lynch. And the rest of the Merrill Lynch site works fine throughout the day. Just stock quotes.
    Thanks
    Safari Version 3.1.1 (5525.20)
    Message was edited by: musicmaker

    Photoshop installer should have installed a ScriptingSupport Plugin in each version of Photoshop you installed. Scan your system for ScriptingSupport I found six on my windows system. Here where I found them:

  • 802.11n Can't get 270mbps link speed on Macbook

    Hi,
    I have a Netgear DGN2000 802.11b/g/n Modem/Router and I have tried, and failed, to get my Macbook to sync at 270mbps. I have set the router to this speed in the setup page, but the network utility has me consistently connected at 130mbps. Is there something I need to enable? Or could the problem lie with the router. I have no other draft n spec machine to test on. Is there anyway other than network utility to see what the router is outputting?
    Thank in advance

    a brody wrote:
    130 mbps is still faster than 802.11g. I suspect the problem is with your router's implementation of 802.11n. It is still a draft standard. Also if your connection is in any way open, it will slow down with each additional machine on the network. Check your router's firmware, and check what happens if only one machine is on the wireless network.
    Network Utility reports 130 mbit/sec, and that's just the theoretical limit. I don't believe that's necessarily any measure rate. I think what some people are upset is that it doesn't *report* the full 300 mbit/sec for "link speed" like you see on the 802.11n enabler page:
    http://store.apple.com/Catalog/US/Images/d4141airportenablerLM.png
    In any case, there's no way that it would be able to stress out a residential internet connection, although some people probably do home networking (I don't).

  • Negotiated Link Speed on MacBook Pro mid-2009 with Kingston SSDNow v300

    Hi,
    I have a mid-2009 MacBook Pro (13") with Kingston SSDNow v300 SSD drive with Mavericks OS X installed.
    I've noticed from different forums that many users have the same problem that I have: SSD drive's Negotiated Link Speed is only 1,5 Gbps, although MacBook Pro mid-2009 should support 3 Gbps speed.
    My system has EFI 1.7 firmware update (MBP55.00AC.B03) installed in and System Info says that 3 Gbps Link Speed should be possible:
    NVidia MCP79 AHCI:
      Vendor:    NVidia
      Product:    MCP79 AHCI
      Link Speed:    3 Gigabit
      Negotiated Link Speed:    1.5 Gigabit
      Physical Interconnect:    SATA
      Description:    AHCI Version 1.20 Supported
    Many users have tried to reset NVRAM and SMC and I have also done these steps, but with not any improvement.
    Some users have mentioned that MacBook Pro mid-2009 has a poor SATA ACHI chipset (NVidia MCP79) and SATA III SSD drives won't work on SATA II speed unless SSD drive is forced to work on SATA II speed by firmware update or by some tweaking tool. Is there this kind of tool available for Kingston SSDNow v300?
    One user says that he got 3 Gbps Negotiated Link Speed on Mountain Lion, but after installing Mavericks, speed dropped to 1,5 Gbps (https://discussions.apple.com/message/23549859#23549859).
    So, is there any way to get Negotiated Link Speed to work on 3 Gbps on Kingston SSDNow v300 with MacBook Pro mid-2009 (for example by installing an older version of Mac OS X) or do I have to buy a new SSD drive from another manufacturer to get 3 Gbps Negotiated Link Speed to work on my machine?
    If the last option (to buy a new SSD drive) is the only option, would it be wise to look for an older model, a SATA II drive, (maybe OCZ Vertex 2) to get 3 Gbps speed?
    Thanks!

    Hi
    I was just as frustated as you after installing the Kingston v300.  I mean it's a solidly built drive with the reliability of kingston (I've been using their RAM for years and years in my desktop PC without problems).  Unfortunately, for a the last 3 months I had it in my 2009 unibody white macbook, it was stuck at link speed 1.5.
    I've been searching in forums since then without any solution.  Even the update for bios is not available for my model.
    I just tried the SMC reset after reading the blog.
    http://thenextweb.com/lifehacks/2010/12/04/how-when-why-to-reset-the-pram-smc-on -your-mac/#!w3XEY
    On reboot, everything seemed faster, so I checked the negotiated link speed and it was at 3 instead of 1.5!  Yay!  Then I checked the disk transfer speed on Blackmagic Disk speed test and it roughly doubled from 138 to 260MB/s.  Now, I'm not going to shutdown or restart...
    I hope this post is useful for people like me stuck at 1.5 Gbps speed.  Good luck

  • Link speed on 2602 in Bridge mode

    Hi
    I need to create a number of bridges on a installation, where i need to use some exsisting 5GHZ antennas
    I can only connect one 5Ghz antenna on each Access-point.
    What is the Max link speed then using a single Antenna - in the best signal senario?
    /Lars

    with one antenna, you'll only get one Spatial Stream, so you will only get ~74Mbps a bit more if you do channel bonding.
    HTH,
    Steve
    Please remember to rate useful posts, and mark questions as answered

  • How to get 802.11n speed for Apple TV?

    I installed my first Apple TV yesterday. Great stuff!
    My iTunes movie library is on a Core 2 Duo MacBook Pro. I have not yet used the AirPort Extreme 802.11n Enabler on this MacBook, since I just found out it exists. If I use it, can I utilize 802.11n sync speeds with the Apple TV? How?
    My AirPort network uses only an "old" 802.11g AirPort Extreme base station, not the "new" AirPort Extreme base station with 802.11n.
    I have three 802.11g AirPort Express base stations on my network, mainly for using AirTunes.
    My iMac connects to my wireless network using 802.11g, and I don't think the 802.11n Enabler works with it.
    My cable modem current connects to my Airport Extreme (802.11g) base station via Ethernet.
    I understand I can get a new AirPort Extreme 802.11n base station to replace the 802.11g one, and that would let me use the higher 802.11n speed from the MacBook to the Apple TV. It would also allow (unless I misunderstand) all my 802.11g devices to access the network at the lower speeds they are capable of. Correct?
    I also understand there is something called a "dual band network" that involves using both base station types in one large network, but I don't know what the advantage of doing that would be, compared with just replacing the old base station. Can someone fill me in on that?
    And, is there any way to get 802.11n speeds from the MacBook Pro to the Apple TV without getting an 802.11n base station?
    Thanks in advance.

    If I use it, can I utilize 802.11n sync speeds with the Apple TV? How?
    And, is there any way to get 802.11n speeds from the MacBook Pro to the Apple TV without getting an 802.11n base station?
    No. Unless you set up an adhoc network between your Mac and the Apple TV.
    I understand I can get a new AirPort Extreme 802.11n base > station to replace the 802.11g one, and that would let me > use the higher 802.11n speed from the MacBook to the Apple > TV.
    Yes, it would.
    It would also allow (unless I misunderstand) all my 802.11g devices to access the network at the lower speeds they are capable of. Correct?
    If you set things up this way, then I believe you wont be able to use wideband mode on the AEBSn. Your AEBSn will be opperating in mixed mode and its 802.11n performance will be degraded. The best set up would be to keep your old router to service the G only devices, and have your new AEBSn service the N capable devices. This would allow you to take full advantage of the performance increase provided by 802.11n capable devices.
    Message was edited by: ctomer

  • 802.11n: How to connect using this feature?

    I am new to Mac and was wondering if anyone can detail or point me to where I can find information on how to use or turn on the 802.11n feature.
    Thank you in advance for your time.

    Hi!
    If you're referring to 802.11n which is the old "draft" standard than there's nothing you'll need to do. The wireless card in your machine and software on the computer is designed to connect to "n" networks as well as b/g networks.
    If you're perhaps referring to 802.1 that requires enabling via Network > Advanced > 802.1x
    Hope that helps.

  • How do I get Ethernet Link Speed stuck at 10 Mbit/s to 100?

    I've 100 Mps Internet service.  My iMac limits ethernet to 10 mps, although the specs say it should be capable of at least 100 mps.  A PC connected to the same Time Capsule gets 100 mps.  My network utility claims the link speed is only 10.  If I try to correct the speed manually, it claims the ethernet cord is not plugged in.  I'm using CAT 5e cord.  How can I fix this?
    iMac 3.06 GHz Intel Core 2 Duo; 4 GB 1067 MHz DDR3; OS X 10.8.1

    Thanks!  I've switched the cords to no effect. I fear the Ethernet port (which I've never use before) must be bad.
    Any idea on how I can fix this?

  • Macbook Pro 15 Change Country Code to get 11n and 300 Mbit/s

    Hello All!
    I have a question: how can I change Country Code on my MBP 15" to get wi-fi 11n mode and 300 Mbit/s (or at least 130) with my TL-WR1043ND router. I've changed the Region setting in the web interface of my router, but it didn't solve the problem. And there is a wonder but my macbook 13" has Country Code: X2 (sometimes FR) and use 11n mode with transmit rate: 130 Mbit/s. So, as for me, that is very strange dependence — Country Code and Connection Speed.
    System info:
    Router preferences:
    Thanx!

    So, I have MBP 15-inch, Mid 2010 and MB 13-inch, Mid 2009. And, as I said before, MB 13 doesn't have the problem with 11g mode, it has Contry Code X2 or sometimes FR, but never UA. And the MB13 is older then the MBP15. Maybe problem is in the router, but I don't know how figure out it. And I don't understand, at all, the dependence Transfer Rate and Country Code — why software is restrict connection speed of hardware?

  • I have 300 stores and I'm looking for a global QOS config that would shape/policy the bandwith based on a % of the detected ISP link speed

    Hi,
    We have 300 stores with mostly the same router config.
    The router in each store is a cisco 891 router capable of doing QOS.
    Each of our store is connected to internet through a local Internet Service Provider (ISP).  They all have different ISP.
    Each store has different Internet plan with different speed, some are DSL, other are using cable modem.
    The connection between the router and the modem is 100Mbps. But the real speed after the modem will be different depending of the Internet plan the store is using. Exemple : 20Mbps download / 2Mbps upload.
    I'm looking for a standard QOS config that would be put in each routeur and that would shape/policy the bandwith based on a % of the detected ISP link speed.  The goal here is to prevent a single desktop computer of the store to take all available bandwith of the ISP link because of youtube , cloud photo upload, etc.
    Because the wan of the router is in the modem at 100Mbps, I cannot use this bandwith indication for the % calculation. The ISP link speed (after the modem)  is much lower than that.  
    In other words, I dont want to set specific qos value or bandwith manual value in each of my 300 router. Especially because the ISP speed is not the same in each site, it's a big job and it's changing all the time.  Stores owner boost their link, etc.
    So, Is there a way within the router to detect the Wan real max speed and to assign dynamically % of the deduced value and assign it to different policy-map rules, etc.
    regards
    Jonathan D

    Disclaimer
    The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
    Liability Disclaimer
    In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
    Posting
    I'm unaware of any (one) "built-in" feature that will do what you're desire.  (BTW, I don't believe PfR, as mentioned by Matt, will do what you desire either, but I've haven't used it in several years.)
    I was looking to address a somewhat similar problem several months ago, and believe I could construct dynamic QoS shaping using an embedded device script working with IP SLA monitoring.  However, the "problem" site (using a cable modem) closed, so I didn't pursue it further.
    An alternative approach would be to use as few policy models as possible.  For example if there are sites with 2, 3 or even 5 Mbps uploads, you might use a 2 Mbps shaper for each.  Of course, sites with more available bandwidth won't obtain the full advantage of it, but your maintenance support will be easier.  Conversely, especially for cable modems, running under their nominal speed might provide much more predictable performance, as HFCs are generally much more variable in their actual available bandwidth, moment to moment.

Maybe you are looking for