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Thread: Wifi issue

  1. #1
    Wifi issue

    Member Since
    Jan 03, 2014
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    24
    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
    Wifi issue
    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
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    6,759
    Specs:
    27" iMac i7 (2011) 10.10, iPhone6, iPad Air 2, AppleTV2
    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?
    External hard disk acquisition addict - but admitting the problem is the first step to a robust backup

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

  3. #3
    Wifi issue

    Member Since
    Jan 03, 2014
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    24
    Tried both of those and they didn't work. reinstalled the OS x and it didn't help either

  4. #4
    Wifi issue
    pigoo3's Avatar
    Member Since
    May 20, 2008
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    U.S.
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    31,502
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.7.5
    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
    Wifi issue

    Member Since
    Jan 03, 2014
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    24
    10-15 feet, every other macbook i've used works just fine from here

  6. #6
    Wifi issue
    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
    Posts
    6,759
    Specs:
    27" iMac i7 (2011) 10.10, iPhone6, iPad Air 2, AppleTV2
    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.
    External hard disk acquisition addict - but admitting the problem is the first step to a robust backup

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

  7. #7
    Wifi issue

    Member Since
    Jan 03, 2014
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    24
    sounds fun

  8. #8
    Wifi issue
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,293
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    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
    Wifi issue

    Member Since
    Jan 03, 2014
    Posts
    24
    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
    Wifi issue
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,293
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    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
    Wifi issue
    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    8,558
    Specs:
    2.8 GHz MacBook Pro 10.10.2, 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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