shkelator

Q: is there any way to get WiFi back working properly after installing yosemite?

Wifi has slowed down to a halt after installing yosemite.....any ideas on how to fix this?

MacBook Air, OS X Yosemite (10.10)

Posted on Oct 22, 2014 10:28 AM

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Q: is there any way to get WiFi back working properly after installing yosemite?

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  • by Linc Davis,

    Linc Davis Linc Davis Oct 22, 2014 4:44 PM in response to shkelator
    Level 10 (208,037 points)
    Applications
    Oct 22, 2014 4:44 PM in response to shkelator

    Please test after taking each of the following steps that you haven't already tried. Stop when the problem is resolved. Back up all data before making any changes.

    Step 1

    Take the applicable steps in this support article. The Wireless Diagnostics program generates a large file of information about your system, which would be used by Apple Engineering in case of a support incident. Don't post the contents here.

    Step 2

    Disconnect all USB 3 devices. If you don't know which are USB 3, disconnect all USB devices except keyboard and mouse.

    Step 3

    If you're not using a wireless keyboard or trackpad, disable Bluetooth by selecting Turn Bluetooth Off from the menu with the Bluetooth icon. If you don't have that menu, open the Bluetooth preference pane in System Preferences and check the box marked Show Bluetooth in menu bar. Test. If you find that Wi-Fi works better with Bluetooth disabled, you should use the 5 GHz Wi-Fi band. Your router may not support it; in that case, you need a new router.

    Step 4

    Open the Energy Saver pane in System Preferences and unlock the settings, if necessary. Select the Power Adapter  tab, if there is one. Uncheck the box marked

              Wake for Wi-Fi network access

    if it's checked.

    Step 5

    Open the Network pane in System Preferences and make a note of your settings in the Wi-Fi service. It may be helpful to take screenshots of the various tabs in the preference pane. If the preference pane is locked, unlock it by clicking the padlock icon and entering your administrator password. Delete Wi-Fi from the service list on the left by selecting it and clicking the minus-sign button at the bottom. Then recreate the service by clicking the plus-sign button and following the prompts.

    Step 6

    In the Wi-Fi settings, select

              Advanced... TCP/IP Configure IPv6: Link-local

    Click OK and then Apply.

    Step 7

    Reset the System Management Controller.

    Step 8

    Reset the PRAM.

    Step 9

    Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.

    Step 10

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

  • by beverly6060,

    beverly6060 beverly6060 Apr 30, 2015 3:51 PM in response to shkelator
    Level 1 (0 points)
    Apr 30, 2015 3:51 PM in response to shkelator

    After installing Yosemite, my wifi is constantly falling off the internet and is slow. I've tried everything suggested....Help...Apple...is there an update to fix this?