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Thread: Wifi issue

  1. #1


    Member Since
    Jan 03, 2014
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    Wifi issue
    I have a 2009 MacBook5,2 2.13 GHz. The signal is very weak and slow and i can't figure out why, here are all the things i've tried but have not worked at all.
    Changed the DNS
    Renewed DHCP lease
    Changed the wifi channel
    Switched with a different hard drive
    Tried starbucks wifi
    Replaced the Airport Card

    Still haven't figured it out and I'm running out of ideas

  2. #2

    mrplow's Avatar
    Member Since
    Oct 01, 2007
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    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Pro 9.7, AppleTV (4)
    Try resetting your network configuration completely:

    In Finder go to:
    yourMacHD/Library/Preferences/SystemConfiguration/preferences.plist

    Rename the preferences.plist to preferences.old

    Restart your Mac

    Attempt to reconnect to your network and try again

    If that doesn't work then do the same thing but for the whole SystemConfiguration folder that the above plist is in.


    You don't say if you've completed a clean install of OSX or tried a new user. Have you done either or both?
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  3. #3


    Member Since
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    Tried both of those and they didn't work. reinstalled the OS x and it didn't help either

  4. #4

    pigoo3's Avatar
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    Quote Originally Posted by riverside1 View Post
    I have a 2009 MacBook5,2 2.13 GHz. The signal is very weak and slow and i can't figure out why
    How far is the computer from the router?

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  5. #5


    Member Since
    Jan 03, 2014
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    10-15 feet, every other macbook i've used works just fine from here

  6. #6

    mrplow's Avatar
    Member Since
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    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Pro 9.7, AppleTV (4)
    It has to be a hardware issue if all the things you've described have been done.

    A broken or disconnected antenna cable, a cable grounding, connectors to the wireless card on the mainboard faulty etc.
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  7. #7


    Member Since
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    sounds fun

  8. #8

    chscag's Avatar
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    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    You stated in your first post that you replaced the airport card. That requires some work and getting inside the machine. I'm assuming the reason you replaced the airport card was because of the weak signal? Note that the antenna leads are located in the display case of your MacBook and attach to the airport card. Was the machine dropped or the display changed at one time?

  9. #9


    Member Since
    Jan 03, 2014
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    Yes i thought it might have been a problem with the airport card so i replaced it. I'm not the original owner so idk it could have been dropped. Would just buying a USB wireless adapter fix the problem?

  10. #10

    chscag's Avatar
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    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Ah, OK. That explains a lot. I suspect the original owner may done something to disturb the antenna leads or connectors. As for the USB connector, you can give it a try if you find one that's compatible.

  11. #11

    Slydude's Avatar
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    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+
    Quote Originally Posted by chscag View Post
    As for the USB connector, you can give it a try if you find one that's compatible.
    @ OP Even if it says Mac compatible make sure you know what the return policy of the vendor. I've had a few of these that were working under earlier OS versions but stopped working after an upgrade. Some haven't updated their drivers in quite a while.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

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