I had an iMac....for a week!

Discussion in 'iMac' started by 38911, Jan 24, 2012.

  1. 38911 macrumors newbie

    Jan 24, 2012
    Bought my first iMac a week ago. Since then nothing but problems with wifi connection - intermittent dire slow internet, frequent disconnections etc.

    I know this seems to be a very common problem but the wierd thing is that apart from the slow connection on the iMac, the Mac itself was trashing the connection on every other device on the network!

    Seriously - my Lenovo Windows laptop that has worked fine for years just ground to a halt when accessing the internet. I setup a constant ping from the Lenovo PC to google.com and it was consistently either timing out or 3000ms+. Same on my other devices in the house. As soon as I turn the iMac wifi off, everything returns to normal.

    I called Applecare several times and over the last 5 days I reckon I've spent 20+ hours trying to fix this :

    Changed wifi channels
    Turned everything else off (iPad, iPod, iPhone, PCs, printers etc)
    Changed encryption
    Turned encryption off altogether
    Moved router to different part of the house
    Moved iMac to different desk
    Removed & recreated locations
    Refreshed Network settings
    Deleted System Preferences
    Bought a new router
    Tried iMac on a neighbors Wifi connection
    Checked for interference (there is just three wifi routers in sight of the Mac, mine and two others which are across the street from me)
    So...... as much as it pains me (because I really like the OS and the product) is that I've just called Apple and told them to come and collect it for a full refund. :mad:
  2. imahawki macrumors 6502a

    Apr 26, 2011
    Wow, all iMacs break the internet connection? I must have a bad/broken one, its not working.
  3. simsaladimbamba

    Nov 28, 2010
    What exact old router and what exact new router do you have, because some routers (or modem-router combos) don't work nice with Mac OS X, which sometimes can be bypassed with a firmware upgrade to the router.

    Have you tried a LAN connection, or is that out of the question?
  4. BrianBaughn macrumors 603


    Feb 13, 2011
    Baltimore, Maryland
  5. 38911 thread starter macrumors newbie

    Jan 24, 2012
    Did you even bother to read the OP? I never said all iMacs break the internet.... in fact I said "the wierd thing is..." which to any literate person implied it's an usual symptom.

    But thanks for your constructive post all the same...


    I tried two different types - a Zyxel b/g and a Netget n router. Both had latest firmware.

    LAN connection worked fine as soon as Wifi was turned off on the iMac... but wired just isn't convenient.
  6. bri1212 macrumors 6502

    Feb 1, 2008
    Did you think of trading it in for a different one? I have never heard of any computer making the network bad for other computers.
  7. 38911 thread starter macrumors newbie

    Jan 24, 2012
    No, whilst I accept it was probably a HW fault on the iMac wifi card, I was 8 days into my 14 day remorse return policy. By the time a replacement had arrived I'd probably be near the limit and didn't want to risk getting another machine with the same issue.

    Having already wasted hours and hours, with AppleCare in complete denial ("it must be your router sir" - except I've tried two different routers and both work fine with other devices..... until the iMac is switched on!), my goodwill is now exhausted.

    Shame because I love the hardware and OS :(
  8. Kebabselector macrumors 68030


    May 25, 2007
    Birmingham, UK
    Get a refund and buy another one. The 14 day policy will kick in again.
  9. harlex macrumors member

    Nov 23, 2011
    There is nothing wrong with your mac, why don't you change channels in the router
  10. 38911 thread starter macrumors newbie

    Jan 24, 2012
    There is nothing wrong with my router - why don't you try reading my OP:rolleyes:

  11. paulrbeers macrumors 68040

    Dec 17, 2009
    My father-in-law had a 802.11n router from Netgear that didn't play nice with Macs. Bought a cheap ASUS router, threw DDWRT on it and it worked flawlessly. Some wireless routers do not play nice with Macs.
  12. 38911 thread starter macrumors newbie

    Jan 24, 2012
    I like the way you phrase it "some wireless routers do not play nice with Macs" :) which implies it's the routers fault.

    I tried a Zyxel 802.11b/g router and a Netgear 802.11n router. Both worked fine with iPod, iPad, iPhone, Lenovo Windows 7 laptop, an Acer netbook and a HP Vista laptop without *any* issues whatsoever.

    So I think it's fair to say it's the Mac at fault not the router.

    Whether it's a HW fault or poor design, I don't know (or care anymore!)
  13. jaikob macrumors 6502


    Jul 1, 2008
    Freeland, MI
    If your so sure that it isn't the router, and it's the iMac, why post this? Why post and not take suggestions from other people?

    I had this same problem with an old Netgear N router. I purchased a new dual band router and my iMac hasn't hiccuped on wifi since.
  14. paulrbeers macrumors 68040

    Dec 17, 2009
    Actually, it is the router.


    The more you know....

    They clearly don't support Apple's required signaling. Which, based on this article, isn't really asking a whole lot. Those are pretty standard protocols.
  15. chrono1081 macrumors 604


    Jan 26, 2008
    Isla Nublar
    In my 11 years of IT experience, its never the computer, its always something in the router.
  16. GGJstudios macrumors Westmere


    May 16, 2008
    Because it's quite apparent that the OP joined the forum just to post this rant, and is not asking for solutions. The OP has already made up their mind that the iMac was at fault and has returned it, so don't try to confuse them with facts. They just want to say how bad iMacs are, even though millions of iMac users don't have the same problems as the OP.
  17. 38911 thread starter macrumors newbie

    Jan 24, 2012
    So it seems it's not an isolated problem then? hmmmmm..... well at least it kind of confirms it's a design fault, not a duff wifi card.

    My NetGear is a brand new dual band 802.11n that I went out and bought last night in desperate attempt to fix this issue. It still wouldn't work. I find it astonishing that a (supposedly) quality manufacturer such as Apple is pushing out hardware with such chronic compatability defects...

    I'm not looking for answers - just sharing the issue because I thought it was an uncommon problem I was having.
  18. jaikob macrumors 6502


    Jul 1, 2008
    Freeland, MI
    Wifi problems are common. Have you updated the OS?
  19. bthrel macrumors newbie

    Nov 11, 2011
    Had to laugh at this, I'm a 20+ year UNIX IT professional and we always blame it on the network guys...

  20. Dweez macrumors 65816


    Jun 13, 2011
    Down by the river
    Another of of us - excellent. And yes - it's always the network guys' fault... :)

    And FWIW, my iMac loves our Netgear dual band wireless router. If I had to wager a bet I'd bet on faulty wireless hardware in the iMac. Fire up wireshark on another system on your home network and watch traffic coming from the iMac.
  21. george-brooks macrumors 6502a


    Oct 31, 2011
    Brooklyn, NY
    Sorry to hear you're having problems! I hate to see a potential mac newbie switch back to the dark side after one small hiccup :(
  22. SKTHEPREZ macrumors member

    Jan 5, 2012
    570, PA
    Call me lucky....

    But I've got a iMac and it never happened.
  23. Sandman1969 macrumors 6502a


    Nov 5, 2007
    YAY! More UNIX guys!!! Damn... over... good grief 20 years here too... damn I am getting old...

    Yeah and they NEVER changed anything!

    Then, odd thing is, once you mention it, miraculously things start working again.

    Of course they NEVER changed anything again...
  24. robgendreau macrumors 68040

    Jul 13, 2008
    Thanks for the post.

    I, for one, appreciate it when we get data points about problems with machines. And I'd bet on the Mac. If a reasonably competent user (and the OP seems at least that) cannot get it to work with two routers I'd say that's an Apple fail. Not so robust; nobody has yet come up with much else he could do but ditch it. It worked with all the other Apple products.

    I'm curious about what happened with the neighbor's connection.

    Maybe it's Anonymous...sounds like this iMac is doing it's own DoS attack ;)
  25. David085 macrumors 6502a


    Nov 9, 2009
    get a refund and get another iMac if that doesn't help you can refund it and don't worry about it don't let apple down :)

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