Joshuaharper

Q: Wifi constantly turned off.

I recently upgraded my iOS software to 10.11.5 for my Mid 2012 MacBook Pro. Ever since then I've had an intermittent problem with wifi connectivity. Sometimes it works fine, other times it is permanently off (displaying the empty grey triangle), other times it displays a message saying "no software installed". The only way I've found to resolve this temporarily is by restarting my Mac. However this solution has become invariably less effective.

 

I've researched into similar threads  which it was suggested to do a SMC reset which ivendone and the problem hasn't been resolved. Any help would be greatly appreciated!

MacBook Pro, OS X El Capitan (10.11.5)

Posted on May 23, 2016 6:33 AM

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Q: Wifi constantly turned off.

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  • by D.Cohen,

    D.Cohen D.Cohen May 23, 2016 6:36 AM in response to Joshuaharper
    Level 6 (8,424 points)
    Desktops
    May 23, 2016 6:36 AM in response to Joshuaharper

    Take a look at this Apple Support article:

    https://support.apple.com/en-us/HT204051


    Reset your network settings.


    Settings - General - Reset - Reset Network Settings


    Reset your device. This won't delete your data stored on the phone.

    • Press and hold the Sleep/Wake button
    • Press and hold on the Home button
    • Keep holding both buttons until the display turns off and back on with Apple logo on it.


    Alternatively, you may go to Settings - General - Reset - Reset All Settings

  • by Linc Davis,

    Linc Davis Linc Davis May 23, 2016 11:20 AM in response to Joshuaharper
    Level 10 (208,000 points)
    Applications
    May 23, 2016 11:20 AM in response to Joshuaharper

    In some cases, this issue is caused by a hardware fault. A loose connection, a short circuit, or a microscopic break in a solder joint may open and close depending on temperature, making the failure intermittent.

    Please test after taking each of the following steps that you haven't already taken. Back up all data before making any changes.

    1. Turn off Bluetooth. If you have a desktop Mac, you'll need a wired keyboard and mouse to take this step. Those are useful to have anyway, because Bluetooth is not completely reliable. If Wi-Fi works with Bluetooth turned off but not when you turn it back on, delete all pairings in the Bluetooth preference pane and recreate them. Restart the computer and test again.

    2.. There are a few reports that the problem was solved by unchecking the box marked

              Wake for Wi-Fi network access

    in the Power Adapter tab of the Energy Saver preference pane. I can't confirm.

    3. Reset the NVRAM.

    4. Reset the System Management Controller.

    5. Start up in Recovery mode. In the menu bar of the OS X Utilities screen, there's a Wi-Fi menu. Try to connect.

    6. Triple-click anywhere in the line below on this page to select it:

    /Library/Preferences/com.apple.Bluetooth.plist

    Right-click or control-click the highlighted line and select

              Services Reveal in Finder (or just Reveal)

    from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You may be prompted for your administrator login password. Restart the computer and empty the Trash.

    *If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination  command-C. In the Finder, select

              Go Go to Folder...

    from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return.

    7. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.