Previous 1 36 37 38 39 40 Next 794 Replies Latest reply: Jan 28, 2016 3:33 AM by softhive Go to original post Branched to a new discussion.
  • bkang97 Level 1 Level 1

    I'll try that but I also have tried using other networks and I've replicated the problem at the Apple Store on their wifi. It appears that I can ping when my browser is closed, but once I open any browser such as G. Chrome, my ping speeds go down and they time out.

    Screen Shot 2014-03-22 at 5.37.09 PM.png

  • stepsie Level 1 Level 1

    Hey Topfjoer!


    I was having significant drops on my late 2013 rMBP running 10.9.2 then I tried your superb 'how to' on dropbox and my wifi now works significantly faster with no latency or drops! BRILLIANT


    Many thanks for going to the trouble of putting the 'how to' together and sharing with all, its brilliant! If only apple support were as useful and speedy as yourself!


    To anyone interested in my set up:-


    Late 2013 MRBr

    2.8Ghz Intel Core i7

    Mavericks (10.9.2)

    Build: 13C64


    Good luck to all and happy wifi driver fixing!


    Thanks again Topfjoer!

  • Grant Bennet-Alder Level 9 Level 9



    On you second run, your truly outstanding Signal Strength of -51 (from the first run) dropped to a poor Signal Strength of -76. That in itself could account for the decreased data rate.


    In my old house, I have wire lath behind an inch of plaster, and the electricity was strung with armored cable. When the two touch (whilch is often) it turns the wire lath into a Galvanic cage and greatly reduces the WiFi signal. Then there are the chimneys, nearly four feet thick.

  • Grant Bennet-Alder Level 9 Level 9



    You are using the normally overloaded 2.4 GHz band.


    You have a good signal strength at -53.


    The THREE standard Clear channels for 802.11g or n in the 2.4GHz band. They are 1, 6, and 11. Each one laps over two channels up and two channels down, i.e., 6 takes up 4,5,6,7,and 8.


    Your Router is set to Channel 10 -- "on the edge" of a real data channel.



    -- diagram courtesy wikipedia



    I think you should check your Router and be sure it is set to choose a channel automatically. If one more Router pops up in your neighborhood, you will need to leave the 2.4GHz band and get a Dual Band Router, which can provide an additional 8 to 12 Channels in the 5GHz band.


    When fix-it procedure suggest you should cycle the power on your Router, is sounds like a fool's errand, but it is not. When the Router powers on again, it chooses the available Channel that is most lightly loaded.

  • Jgnmoose Level 1 Level 1

    I can confirm that this was the solution to my issue. After trying nearly every other avenue suggested on these forums, the solution was using an older driver. Thanks Topfjoer for pointing out the real answer.


    In my case I was okay with my browsing speed and downloads have never been terribly fast (rural DSL). What tipped me off that something was seriously wrong was a) Time Machine backups that never came close to completing (with only 100GB to back up), b) transfering a 23MB project folder to my 2006 Mac Pro took over a minute c) No changes to AFB/SMB or any other related file transfer settings made any difference in transfering data between the MBP and either my 2012 Mini (Mavericks) or my 2006 Mac Pro (Lion).


    Good find!



    Topfjoer wrote:


    I followed the last part (A how to) of headcase's description here:


    But before copying that .kext file into your system library, make sure you save the original one somewhere else before overwriting it. That way you can always roll back - which is the same procedure...


    After installing the MBA driver this is what the description under Network/Wi-Fi in the system report says:

    Card Type:          AirPort Extreme  (0x14E4, 0x112)

    Firmware Version: Broadcom BCM43xx 1.0 (

  • Pavel Gubarev Level 1 Level 1

    Older drived didn't help me. So I had to buy $30 thunderbolt to ethernet adapter and 5 meter ethernet cable to keep working on my macbook.


    Well done Apple!!

  • jsalord Level 1 Level 1

    Hi to everyone,


    After solving the "wifi takes too long to reconnect after sleep" related someway to bluetooth I began experiencing wifi drops and I did the following ping tests:


    * bluetooth off: 0% packet loss

    * bluetooth on and mouse paired: 1,5% packet loss

    * bluetooth searching devices: 33,8% packet loss !!!


    After that I found this thread and I`ve tested the driver "downgrade" suggested by Topfjoer (page 16) and it solved my problem.


    Now I wonder if other people having this problem had also a bluetooth device paired.



  • Grant Bennet-Alder Level 9 Level 9

    Bluetooth uses the same part of the frequency spectrum (typically already overloaded) in the 2.4GHz band. I expect there WILL be a correlation, but only for those stuck in the 2.4GHz band with too many neighbors already.


    The solution of getting a dual-band Router will cure BOTH.

  • 4rk Level 1 Level 1

    What a lovely thread.

    Consider the network cable, by the power cable, where it's been for the last 5 years in my apartment, sitting there, saying: well, you could, you know, have bought a laptop that has a port for me, and none of these problems would hit you when you're actually busy.


    First order of business is an network cable adapter, maybe even the thunderbolt one from Apple.


    So I have a 2013 Macbook Pro Rentina with 10.9.2, which has that broadcom driver, and a (Cisco) Linksys EA3500 router with firmware (a 2012 vintage, a good year for selling subdivisions).

    I am on the 5Ghz channel 36, mostly, and I am getting RSSI -52 at the 450 rate (which I'm guessing is mbits).

    The two main problems I still see a dropped block of packets now and again which is just enough to disrupt my use of vpn... which otherwise I wouldn't notice. And yes I usually have bluetooth on, though I've seen it with it off too. And second, the annoying issue, is when waking up I am told I don't have a connection (in my browser) while the network claims to be connected to the right SSID. This either takes a good 5-8 minutes to resolve "itself" or I have to turn the airport off and on for the... hello everybody, we've all woken up and we're ready to go now, are you coming along built-in wifi? effect.


    I don't plan to replace the router... I don't plan to walk around with a dongle... so this is how I make do, turning it off and on. I do plan to see when an update will actually address the issues. I can understand that perhaps it is the EA3500 at fault (though no other computing device I use has the same issues).


    As an aside I'd like everyone to read up on why doing actual (albeit network) file operations is not a good way to test network speed, and familiarize themselves with some simple tools that'll make you feel better about it: [man nc, man dd, dev/null dev/zero]

  • Grant Bennet-Alder Level 9 Level 9



    You are already using the less-crowded 5GHz band, and your speeds have gone far beyong the maximum 54 Mbits/sec possible staying in the 2.5GHz band and sticking with 802.11g.


    One of the most suggested "cures" for networking problems sounds like a "fool's errand" -- to cycle the power on your Router. This can actually be very helpful because your Router will typically re-evaluate and find the "best" Channel when it powers up, and may move away from a Channel that has become busy to one that is less busy.


    BlueTooth creates interference only in the 2.4GHz range, where it is channel-hopping like crazy, rather than directly competing.


    when waking up I am told I don't have a connection (in my browser) while the network claims to be connected to the right SSID.

    There are two possibilities here:


    A) You may have a Domain Name Server (DNS) problem


    Non-responsive DNS server or invalid DNS configuration can cause long delay before webpages load


    B) Adjusting these two settings can help network re-connection:


    1) Remove unwanted networks from the list of "known" networks under


    System preferences > WiFi/Airport > (Advanced) > | Airport/WiFi pane ...







    2) System preferences > WiFi/Airport ...


    ... check [√] Ask to join new networks


    "Known networks will be joined automatically.

    If no known networks are available, you will

    be asked before joining a new network."





  • Grant Bennet-Alder Level 9 Level 9

    Gigabit Ethernet is nearly a requirement for using a File Server or NAS. It should allow for "near Hard Drive" speeds. But a Gigabit Ethernet Switch may seem exotic because it is not on the front display at Best Buy.


    Gigabit Ethernet Switches are available at the Apple Online store in 5-port, 8, 16, and 24-port models.

  • johnniecache Level 1 Level 1

    i disagree. The MBPr is advertised with "Gigabit WiFi", and it actually has a superb WiFi chip in it, which gives me a brilliant connection, very low ping and real-life transfer rates of 45 MB/s - under WINDOWS.


    The only problem is mac os and its drivers. Under Mac OS the WiFi is good for Internet stuff but really nothing else. I end up using Windows more and more just because of this misery. And then i switch back again because of the bad Bluetooth drivers in apples bootcamp drivers, but thats another threat..

  • bkang97 Level 1 Level 1

    I have found the answer people.

    The motherboard needs to be replaced.

    Proof: this current thread.

    More proof:

    I have the problem above as well as the internet disconnections.

    My iPhone 5C (with the thunderbolt cable) repeatedly and rapidly connects and disconnects from my MBPr when connected via cable. The cable functions normally on all other computers.

    Evidence from my last repair (network card replacement) suggests that my motherboard is at fault.

    Also, the thread from the link above contains definite proof that the motherboard is at fault.


    Get your motherboards replaced.

    That is the the solution, not the question.


    Hopefully, this helps.

  • Grant Bennet-Alder Level 9 Level 9

    Was there any particular symptom or situation or diagnostic that tipped the scales for you toward motherboard replacement? Any Litmus test?

  • bkang97 Level 1 Level 1

    Ok, I guess I forgot to mention it. So at first the guy at the Apple was like "its the motherboard." But when they sent it in to get it repaired, only the network card was replaced. I'm having the problem with the 5C disconnecting and connecting rapidly on my MBPr, and I know its no the cable because it works with my other computers. On the thread I posted above about the iPhone disconnects, the people there got their motherboard replaced and their problems vanished.


    So, I have two overwhelmingly supporting pieces of evidence which points to motherboard problems.

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