Windows gets fast and stable Wi-Fi. OS X does not.

Discussion in 'MacBook Pro' started by Ultra AleM, Sep 20, 2015.

  1. Ultra AleM macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #1
    Hello, guys. I have a MacBook Pro Retina in my room. My Wi-Fi router is not near, I admit, but here's what happens:

    When I am on OSX it is super slow. It can litterally reach 0,5 Mbps. A nightmare to use.
    When I am on Windows, it's full speed. It's always reaching, at least, 28 Mbps.

    Same thing for other notebooks with Windows. And I'm suspecting it happens on phones, too. Many times my iPhone 5 is slower than my mother's Moto G.

    What's with Apple and Wi-Fi management?
     
  2. Aneef macrumors regular

    Aneef

    Joined:
    Jun 4, 2015
    Location:
    Lahore, Pakistan
    #2
    How are u calculating the link speed of 0.5 Mbps? Through some speed test website? It's possible that OS X is busy in updating any app or the Mail app (if you've configured it) takes a lot of bandwidth to download mails. It would be better if u analyse the link speed with some app. I use iStat Monitor and it shows me almost the actual upload/download speeds. My macbook is a hell lot faster than my windows machine as it has 802.11ac as compared to my windows machine which has only 802.11a/b/g/n.
     
  3. Ultra AleM, Sep 20, 2015
    Last edited: Sep 20, 2015

    Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #3
    Hello, I calculated the speed via speedtest.net. I'm 100% sure that no process was running in background or using my connection (I did this test many times on many days, btw). I am 100% sure that the problem is OSX, because Windows, in the same exact conditions, is extremely faster, and does not turn my browsing into a nightmare. Any advices? Thanks a lot. The only thing that I can do to fix this problem is selling my Mac...
     
  4. priitv8 macrumors 68020

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #4
    There is something wrong with your setup. OS X in itself is no reason. This is what I get:
    [​IMG]
    15" rMBP early-2013 + AirPort Extreme
     
  5. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #5
    Yes, but it's fast for me too if I'm closer to the router. The problem is in my room. Why, in my room, Windows gets full speed while OS X can't be fast and stable?
     
  6. CreatorCode macrumors regular

    CreatorCode

    Joined:
    Apr 15, 2015
    Location:
    US
    #6
    Most likely, OS X is automatically joining some other open network instead of the right one.

    Open System Preferences > Network and make sure the "Ask to join new networks" box is checked. Then click on Advanced, click the Wi-Fi tab, and make sure that the Preferred Networks list only has the networks you actually want it to have.
     
  7. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #7
    Its all right. It's correctly connected to my router without other open networks. Other ideas,
     
  8. zombiecakes macrumors regular

    Joined:
    Jul 11, 2012
    #8
    When I transfer a file from Mac to PC from within Windows I get a pretty steady 16MB/s, when I do it in OSX I get an unsteady 10MB/s. Its also much more reliable if I use Windows to start the transfer since OSX will sometimes just give up halfway through a lot of GBs. Same computers, same time, same direction (MBP>PC), same distance, very different speeds depending on which OS controls the file transfer. They definitely arent the same.
     
  9. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #9
    Yes, I got it. But it's a nightmare. For example, OS X is now networking at a speed of 350 KB/s, while Windows is networking at a speed of 3,50 MB/s...
     
  10. TechZeke macrumors 68020

    TechZeke

    Joined:
    Jul 29, 2012
    Location:
    Rialto, CA
    #10
    Reliability seems okay so far on El Capitan. Yosemite was always terrible vs Windows when comes to Wi-Fi. My iMac running Windows 8.1 and recently 10 was much better. I selected my Wi-Fi network once during first boot and never looked at the Network screen again. On Yosemite, I had to turn wi-fi on and off again periodically to get full speed.
     
  11. t0mat0 macrumors 603

    t0mat0

    Joined:
    Aug 29, 2006
    Location:
    Home
    #11
    Is Windows 10 wifi still sharing user's wifi passwords?
     
  12. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #12
    What? No.
     
  13. PhantomGhost macrumors newbie

    Joined:
    Sep 21, 2015
    #13
    Actually yes, yes it is. That's the default setting for Windows 10, but you can turn it off.

    As to your original problem, I don't have that issue at all, so I'm not sure what it is. I get great range with my MBP, though I guess since my whole house is covered fine, I haven't really tested your exact issue. Wait for El Capitan and see how it does, I've seen several great improvements with it (wifi wasn't one of them, but who knows).
     
  14. priitv8 macrumors 68020

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #14
    What frequency are you connecting on? What S/N ratio do you see and what MCS index do you get?
    BTW if you are still on 2.4GHz, do you also have Bluetooth on?
    [​IMG]
     
  15. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #15
    Did you try to connect to your router via a cat-5 cable and measure its performance that way?

    I found sometimes my MBP connected to a neighbor's wifi and my network performance sunk. Once I realized that was the case, I make sure I'm on the correct network :)
     
  16. Alameda, Sep 22, 2015
    Last edited: Sep 22, 2015

    Alameda macrumors 6502a

    Alameda

    Joined:
    Jun 22, 2012
    #16
    If you want to fix the problem, do exactly what it says on the piece of paper they put in the box of every single electronic device you ever buy: "Relocate or reorient the receiving antenna."

    Put your WiFi router another few feet higher, or away from an obstruction, and reception in your bad spot with your metal-encased laptop will likely be as good as with the plastic encased laptops. Simple. That's a downside to Mac notebooks -- the metal case will cut down wifi reception. But moving your wifi antenna at home will cure it, because you said that performance is fine when you're closer.
     
  17. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #17
    Hello! I'm connected to 2,4 Ghz (as every other device) and Bluetooth is off.
     
  18. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #18
    Hello! It doesn't make sense, since Windows gets full speed (same pc, same place, same router, same conditions).
     
  19. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #19
    Hello! I can't use a cable. The router is not nearby.
     
  20. chevalier433 macrumors 6502a

    chevalier433

    Joined:
    Mar 30, 2011
    #20
    You can set a static ip.
     
  21. priitv8 macrumors 68020

    Joined:
    Jan 13, 2011
    Location:
    Estonia
    #21
    Why would that help? But if it really does, I'd do it via DHCP reservation.
     
  22. Alameda macrumors 6502a

    Alameda

    Joined:
    Jun 22, 2012
    #22
    Cover the Windows laptop in aluminum foil and tell me this again. Makes perfect sense. The Mac is covered in metal, not radio-transparent plastic.

    When the Mac is closer, you get full speed operation. Ergo, the problem is Rf. Reorient or relocate the antenna. Or keep whining about it, if it makes you feel better.
     
  23. Alameda macrumors 6502a

    Alameda

    Joined:
    Jun 22, 2012
    #23
    See? You say the connection is fast if you're closer to your router. This means that your problem is related to the reception of the radio signal itself. With distance, the signal strength falls off faster in your metal-encased laptop. Try moving your wifi router a few feet higher.
     
  24. joe-h2o macrumors 6502a

    Joined:
    Jun 24, 2012
    #24
    Are you not reading his posts? He said that *literally the same machine* shows different wifi performance in the same location when switching between OS X and Windows via bootcamp.

    This suggests a software issue with his OS X install.

    What we need to see are the figures that OS X is using (option click on the wifi symbol and give us s/n, MCS index, channel info etc) and what information Windows is reporting.

    It sounds like something has gone wrong with the wifi config in OS X.

    What happens with a new user account on OS X? Same speed issues?
     
  25. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

    Joined:
    Jun 22, 2012
    Location:
    Italy
    #25
    I will try with a new user as soon as possible, thanks!
     

Share This Page