Border Heeler
Level 1 (64 points)
iPad

Q: Problems connecting to internet

Hello!  I am having an odd problem. On my MacBook and iPad, I can connect to the internet just fine.  But i am getting intermittent connection problems on my iMac. The connection is off more than it is on.  The iMac is the newest device of the bunch, just a few months old. I have reset the modem and router and rebooted the iMac several times. My internet provider is seeing no problems. What would cause just one device to have connection problems?

 

Thank you!

 

-BH

iMac (27-inch, Late 2013), OS X Mavericks (10.9.1)

Posted on Sep 15, 2014 2:14 PM

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Border Heeler

Q: Problems connecting to internet

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  • Helpful answers

  • by Linc Davis,Helpful

    Linc Davis Linc Davis Sep 15, 2014 2:32 PM in response to Border Heeler
    Level 10 (208,037 points)
    Applications
    Sep 15, 2014 2:32 PM in response to Border Heeler

    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

    Reset the System Management Controller.

    Step 7

    Reset the PRAM.

    Step 8

    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 9

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

  • by Border Heeler,

    Border Heeler Border Heeler Sep 15, 2014 2:55 PM in response to Linc Davis
    Level 1 (64 points)
    iPad
    Sep 15, 2014 2:55 PM in response to Linc Davis

    In doing the diagnostics, I remembered that this iMac was connected to the router (Airport) via Ethernet cable.  When I switched it to WWII, my connection immediately improved --  for about a minute.  Now it is terrible again, either slow (unbelievably slow) Or not working at all.  Will proceed with the diagnostics, but I have a question:  is the Wireless Diagnostic program the same as the Network Diagnostics in 10.9.4? 


    Thanks,


    -BH


  • by Linc Davis,

    Linc Davis Linc Davis Sep 15, 2014 3:19 PM in response to Border Heeler
    Level 10 (208,037 points)
    Applications
    Sep 15, 2014 3:19 PM in response to Border Heeler

    is the Wireless Diagnostic program the same as the Network Diagnostics in 10.9.4?

    No.