GCMCreative

Q: Why in OS X Mavericks internet is so slow?

I have and imac with the maverics updated, and also have 3 other laptop, 1 Ipad and 1 Iphone. Internet speed is slow in the imac after the updated. It's impossible to navigate a normal speed. My ISP is OK, My Router is OK. The Imac and Maverics is the problem. How can i fix this?

iMac (21.5-inch Mid 2011), OS X Mavericks (10.9)

Posted on Nov 1, 2013 3:24 AM

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Q: Why in OS X Mavericks internet is so slow?

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  • by vialli25,

    vialli25 vialli25 Nov 3, 2013 8:17 AM in response to GCMCreative
    Level 1 (0 points)
    Nov 3, 2013 8:17 AM in response to GCMCreative

    I have exactly the same problem. Mine is a late 2010 iMac. My router is fine, my iPhone, iPad, Macbook Air, Apple TV and Xbox are all fine, it's just my iMac which is ridiculously slow at browsing and downloading.

     

    PLEASE HELP APPLE.

  • by RyanF323,

    RyanF323 RyanF323 Nov 3, 2013 10:04 AM in response to GCMCreative
    Level 1 (0 points)
    Nov 3, 2013 10:04 AM in response to GCMCreative

    I am also experiencing periods of very slow wifi performance.  Other computers and devices on my network are unaffected.  I find that with Safari and Firefox, DNS lookup times out.  I changed my DNS servers from google to opendns and the performance improved for a few minutes.  Later in the same session, the internet became very slow, and eventually unusable.  DNS lookup was failing again.  I have found that rebooting the machine allows the internet to function normally for a few minutes, but the problem returns.  Help.

     

    2012 rMBP15

  • by chattphotos,

    chattphotos chattphotos Nov 3, 2013 11:03 AM in response to GCMCreative
    Level 4 (2,442 points)
    Desktops
    Nov 3, 2013 11:03 AM in response to GCMCreative

    That's odd...

     

    What browser(s) are you using?

     

    Are you within good range of the wifi?

  • by RyanF323,

    RyanF323 RyanF323 Nov 3, 2013 11:20 AM in response to chattphotos
    Level 1 (0 points)
    Nov 3, 2013 11:20 AM in response to chattphotos

    It is very odd.  I am in the same room as the router, approximately 10 feet away with direct line of sight.  I am using Firefox, but the issue shows in Safari and my virtual machines.  I am thinking it is a DNS bug issue within Mavericks.  The only change in my set up is Mavericks.  My other machines, phones, and iPad behave fine.

  • by vialli25,

    vialli25 vialli25 Nov 3, 2013 11:31 AM in response to chattphotos
    Level 1 (0 points)
    Nov 3, 2013 11:31 AM in response to chattphotos

    I'm the same. My only change is Mavericks. My Macbook Air can be in the same room as my iMac and still perform consistently better than the iMac on the internet. Speedtest.net is reporting a difference of up to 15Mbps between my iMac and Macbook Air.

     

    The problem happens on both Safari and Chrome for me. Not tried any other browsers.

  • by chattphotos,

    chattphotos chattphotos Nov 3, 2013 3:02 PM in response to RyanF323
    Level 4 (2,442 points)
    Desktops
    Nov 3, 2013 3:02 PM in response to RyanF323

    Safari has a weird issue with page load times, never could figure it out, so I just stopped using it.

     

    Did you upgrade or install fresh? (if the first, see what happens with a fresh installation)

     

    I run my own DNS on my network, and I also use Google/Sprint DNS, so in a nutshell, my browsing speed is maxed out, the only way to make the network run faster is for the techs upgrade the servers/websites on the other end of the wire.

     

    Imagine, pressing enter and the page is loaded, that is how fast Mavericks runs on my computer.

     

    Try some nslookup commands in terminal, time how long it takes to get a response/IP address (anything less than 3-5 seconds is normal)

     

    nslookup apple.com

    nslookup cnn.com

    nslookup lifehacker.com

     

    Let me know if you get NXdomain or no server found errors.

  • by codybrianna,

    codybrianna codybrianna Nov 3, 2013 7:48 PM in response to GCMCreative
    Level 1 (0 points)
    Nov 3, 2013 7:48 PM in response to GCMCreative

    I am also experiencing the same problem as everyone else has noted.  I have a one-year old MacBook Air.  My internet is very slow in both Mail and Safari.  Sometimes it can be corrected after a restart but then it will occur again later.  Help please.

  • by Ciderkin,

    Ciderkin Ciderkin Nov 3, 2013 8:01 PM in response to GCMCreative
    Level 1 (12 points)
    Mac OS X
    Nov 3, 2013 8:01 PM in response to GCMCreative

    I have the same problem here with my iMac2010, before upgrading to Mavericks, everything is fine, but now it's very slow and always crash while surfing on the net. This problem not happening on my Mac mini and my other mac with Mountain Lion.

  • by 00kit,

    00kit 00kit Nov 17, 2013 11:37 AM in response to GCMCreative
    Level 1 (0 points)
    Nov 17, 2013 11:37 AM in response to GCMCreative

    Yes, having the same issue with mavericks. DNS lookup fails at times. iOS devices work fine. Any suggestions?

  • by Eric Root,

    Eric Root Eric Root Nov 17, 2013 11:39 AM in response to GCMCreative
    Level 9 (72,884 points)
    iTunes
    Nov 17, 2013 11:39 AM in response to GCMCreative
  • by Old Toad,

    Old Toad Old Toad Nov 17, 2013 11:40 AM in response to 00kit
    Level 10 (141,380 points)
    Mac OS X
    Nov 17, 2013 11:40 AM in response to 00kit

    Check in the System Prefereces to see what DNS servers you're using?  I use Open DNS servers and they work fine with Mavericks:

    Screen Shot 2013-11-17 at 11.39.40 AM.jpg

     

    OT

  • by larkw,

    larkw larkw Nov 17, 2013 12:39 PM in response to RyanF323
    Level 1 (0 points)
    Nov 17, 2013 12:39 PM in response to RyanF323

    I have the same issue and opened a new thread https://discussions.apple.com/message/23818180#23818180.

     

    The problem I found so far

     

    1. arp resolution and icmp stop working, so you will reach 'network unreachable' state eventually

    2. local dns service/helper stop working, while dns server is reachable and response correctly

     

    Disabling then enabling network connection will remedy the issue, but the good state is short life.

  • by dominic434,

    dominic434 dominic434 Nov 20, 2013 7:32 AM in response to GCMCreative
    Level 1 (0 points)
    Nov 20, 2013 7:32 AM in response to GCMCreative

    I'm having the exact same problem. All devices working well except MacBookPro with MacOS mavericks installed. Very frequently addresses everywhere, over terminal, mail client, browser are not reachable. So it's definitely system-wide. Sometimes I'm sensing IP addresses may work whereas domain names don't. Sometime even both aren't working.

  • by dominic434,

    dominic434 dominic434 Nov 20, 2013 9:48 AM in response to dominic434
    Level 1 (0 points)
    Nov 20, 2013 9:48 AM in response to dominic434

    Is it possibly a Wi-Fi issue? I connected with a network cable and the problem seemed gone, not a solution though.

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