fandream

Q: wifi disconnection

I just bought iMac 2.9GHz Intel Core i5 with OS X 10.9.5. I have a problem with wifi. It seems that it gets disconnected each time it gets sleep mode. I can easily reconnect through network diagnostic but it is very cumbersome. I bought macbook air at the same time and it works just fine.

There should be some solution. Any suggestion?

Thank you in advance

iMac, OS X Mavericks (10.9.5)

Posted on Jul 4, 2015 7:01 PM

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Q: wifi disconnection

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  • by Linc Davis,

    Linc Davis Linc Davis Jul 4, 2015 7:16 PM in response to fandream
    Level 10 (207,963 points)
    Applications
    Jul 4, 2015 7:16 PM in response to fandream

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

    1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved. Make sure the box marked

              Remember networks this computer has joined

    is checked.

    2. Follow the instructions in this support article under the heading

              Symptom: After restarting or waking from sleep, my computer might not connect to the Internet

    3. Reset the PRAM.

    4. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.

    5. From the Location menu at the top of the Network preference pane, select Edit Locations. A sheet will drop down. Click the plus-sign button to create a new location. Give it any name you want. In the new location, set up the Wi-Fi service with the same settings you used before. Click Apply and test.

    6. 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.

    7. Repair permissions on the startup volume.

    8. Turn off Bluetooth and test.

    9. Reset the System Management Controller.

    10. This step shouldn't be necessary, but has been advised by Apple Support in some cases, apparently as a workaround for a bug. Open the Energy Saver pane in System Preferences. If applicable, click the padlock icon in the lower left corner to unlock the settings. Enter your administrator login password when prompted.

    Select the Power Adapter tab and uncheck the boxes marked

              Wake for Wi-Fi network access

    and

              Enable Power Nap...

    if present. Then, if the computer is a MacBook, select the Battery tab and uncheck

              Enable Power Nap...

    11. Reinstall OS X.

  • by fandream,

    fandream fandream Jul 11, 2015 8:25 PM in response to Linc Davis
    Level 1 (0 points)
    Jul 11, 2015 8:25 PM in response to Linc Davis

    Thank you so much for your information.

    I just did straight to #10. I unchecked "wake for wi-fi network access" and now it is working fine.

    Big sigh~~

    Now only question is how it can affect my computer. such as if I want to have a remote access to my desktop, is it going to be a problem?

    Thank you again

    JY