Greenlaner
Level 1 (30 points)
iPhone

Q: Puzzling Internet connection problem.

Puzzling Internet connection problem.


My MBP (13-inch, Mid 2012, OS X 10.11.2) is connected by wifi to the the router (TalkTalk) and the network pane in system preferences confirms this but often, intermittently, when I open a browser window, the progress bar gets to about 15% and stops. It doesn't matter which browser – I have Safari, Firefox and Chrome. When this happens Mail shows a warning triangle with the message “Account Error”.


Some other services seem to work as expected: I wrote this document on the MBP and saved it to iCloud Drive, then updated it and the changed version was immediately available on my iPhone. Or maybe that's what started the browsers and email working again.


Other devices (iPad, iPhone)connect wirelessly without problems.


If this was a Windows machine I'd suspect a service has stopped – is there a similar diagnosis for OS X?


I also get system lockups and kernel panics quite frequently. I wonder if these are all related and, if so, what I should do to fix them.


OS X El Capitan (10.11.2)

Posted on Jan 10, 2016 12:19 AM

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Greenlaner

Q: Puzzling Internet connection problem.

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  • by FromOZ,

    FromOZ FromOZ Jan 10, 2016 12:45 AM in response to Greenlaner
    Level 3 (545 points)
    Jan 10, 2016 12:45 AM in response to Greenlaner

    In terms of what issue you should be worried about, and which issue could underlie other issues then kernel panics are, by far, more of a concern than intermittent Internet connection problems.


    As you say yourself other devices on your network do not have any Internet connection issues. Therefore logically it points to the MBP, and as you say you are getting kernel panics then that is definitely the place to start.


    Here are a few links detailing steps to take to determine, isolate and fix the cause of kernel panics. The XLab one is a bit older but still has good relevant information.


    Follow them through carefully — kernel panics are rare and are an indicator that there are one, or more, serious issues that need to be fixed.


    OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem." - Apple Supp…

     

    http://www.macissues.com/2015/04/13/how-to-fix-kernel-panics-after-installing-os -x-updates/

     

    http://www.thexlab.com/faqs/kernelpanics.html

  • by Linc Davis,

    Linc Davis Linc Davis Jan 10, 2016 6:29 AM in response to Greenlaner
    Level 10 (208,005 points)
    Applications
    Jan 10, 2016 6:29 AM in response to Greenlaner

    These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.

    Please launch the Console application in any one of the following ways:

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

    ☞ Open LaunchPad and start typing the name.

    In the Console window, select

              DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports

    (not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select

              View ▹ Show Log List

    from the menu bar.

    There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A panic report has a name that begins with "Kernel" and ends in ".panic". Select the most recent one. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.

    If you don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.

    In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)

    Please don’t post other kinds of diagnostic report.

    I know the report is long, maybe several hundred lines. Please post all of it anyway.

    When you post the report, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.

    If you have an account on Pastebin, please don't select Private from the Paste Exposure menu on the page, because then no one but you will be able to see it.