HT1338 why do i lose wi-fi internet connection on iMac when computer wakes from sleep

Everytime my imac wakes from sleep I lose internet connection and have to go into network and reconnect.  I am using OS X Mountain Lion software.  Please help!

You might try looking at these Apple support articles:
http://support.apple.com/kb/PH11099
http://support.apple.com/kb/PH10662 - very simple suggestions only
Here is another thread with a suggestion:
https://discussions.apple.com/message/18848093#18848093
You also might want to consider filing a feedback report. A lot of people are having similiar problems:
http://www.apple.com/feedback/
If you monitor the "More Like This" box (top right), other threads appear. Opening them usually displays other threads.

Similar Messages

  • I lose internet connection on iMac when it wakes from sleep

    Everytime my imac wakes from sleep I lose Wi-Fi connection.  I am using OS X Mountain Lion.  Please help

    You might try looking at these Apple support articles:
    http://support.apple.com/kb/PH11099
    http://support.apple.com/kb/PH10662 - very simple suggestions only
    Here is another thread with a suggestion:
    https://discussions.apple.com/message/18848093#18848093
    You also might want to consider filing a feedback report. A lot of people are having similiar problems:
    http://www.apple.com/feedback/
    If you monitor the "More Like This" box (top right), other threads appear. Opening them usually displays other threads.

  • Internet connection not working after computer wakes up from sleep. OSX Lion

    After upgrading to Lion, I noticed that my internet connection doesn't work when I wake my computer from sleep. I have to turn off the WiFi connection, turn it back on and it will work. I guess this is a glitch that will be fixed later on. Just wanted to point it out. I don't know if someone else is having the same problem? I am not very happy with the upgrade to Lion, things seem to be slower, I've had several freezes requiring to reboot. I guess Lion needed a little more twicking before release. Not worth the $29.99 price tag.

    I had this problem on SL and on Lion as well, and it occures for WiFi and Ethernet connections.
    In fact the internet connection was not broken as I could ping the destination usin the IP (not DNS name).
    In this case the problem was related to mDNSResponder task which handles all dns queries.
    It was the most frequent problem in my day to day work with SL and now Lion. It was never fixed by any patch from Apple. I tried almost all voodoo including fresh install, all possible config changes - no solution.
    The only version with no problems related to network was 10.5.8. All the other versions had issues of different kind (WiFi instability (lost signal), DNS problems (for wireless and wired connection) sometimes associated with machine sleep and wake up and sometimes with no reason.
    QUESTION: Is your problem independent of the access point / router you connect to.
    I must say networking was (and still is) the weakest part, besides the other OS X weaknesses I experienced during 4 years of OS X usage.
    No problems in the same network with Linux or Windows beeing ran natively on my iMac So hardware is OK.
    Software is of poor quality. Not much more to say in this matter.
    I found a very interesting article dated 1996 about programming which I think is still valid.
    Link to the article: http://www.fastcompany.com/magazine/06/writestuff.html
    Below the fragment (with some connection to Apple)
    Software is everything. It also s***s.
    "It's like pre-Sumerian civilization," says Brad Cox, who wrote the software for Steve Jobs NeXT computer and is a professor at George Mason University. "The way we build software is in the hunter-gatherer stage."

  • HT1338 I have a Mac iBook late 2007 w/ 10.7.5 which has a simular iMac problem with 'wake from sleep' that has be resolved. However, I cannot find an MacBook solution to my problem. Any ideas?

    The abstract says it all. I close the cover of my MacBook and when I reopen it - the computer fails to attempt to connect to the last known wifi hotspot I was connected to or search for a known connection. I have to manually connect wifi to my home computer since upgrading at some point in the 10.7.x releases. The problem is described in the support for the iMac as having been resolved successfully, but I am interest in knowing if anyone else has seen and resolved this problem on a MacBook?

    These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
    Launch the Console application in any 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. Click Utilities, then Console in the icon grid.
    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 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.
    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.

  • HT1338 Imac won't wake from sleep when a facetime call comes in

    My Imac will not awake from sleep when a FaceTime call comes in. 

    I've had this problem several times now, and I do no own MobileMe. I don't use any bluetooth peripherals, but I've noticed that the precursor to the problem is that my bluetooth icon in the menubar goes from normal to "Bluetooth Unavailable." Then at some point later on, I put the iMac to sleep and it won't wake up.
    I've read elsewhere that the bluetooth unavailable problem may be connected to the power management unit, which may in turn explain what is going on with it not rebooting. But I'm not sure.

  • I lose network connection after MacBook Wakes from Sleep

    I upgraded to Mountain Lion on my 27" iMac and 15" MacBook Pro. iMac is doing fine. MacBook Pro, however, when it wakes from sleep, seems to have the network untility crash.
    So the computer wakes from sleep, and the little status bar radar thing does its little sweep and doesn't just go solid. . If I click on it, it shows my Airport as connected, but after clicking, it freezes. the second to the bottom bar goes solid and the cursor becomes a spinning beachball. If I open system preferences, and select network, it freezes. The only way I can seem to get back on line is to reboot. I have an airport extreme with an older (g) airport express that I use to beam music to my stereo. The MacBook Pro is about 2009 vintage—you can still get to the battery, HD and memory—and the iMac is a bit later. One of the first 27" models, not quad core.
    Anyone else having this problem? What more info would you need to help resolve? I'm a novelist and this is killing my productivity.
    Thanks,
    Steve
    http://stephenstark.me

    Try the basics first:
       Change your router channel number.  Most times this works & is all you have to do.
    Disconnect & reconnect your modem.  unplug it for about 10 seconds.  Plug it back in.  Do the same for Apple’s routers.  Wait for everything to reboot.
    System Preferences>Network
    Click the Assist Me button.
    In the next window that pops up, click the Diagnostic button & do the necessary.
    Research Knowledge Base for network problems that pertain to the OS that is currently installed on your computer.   See these basic networking KB Articles:  http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
    http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
    Manually provided DNS server addresses are higher priority than DHCP's
    http://support.apple.com/kb/HT1714 Solutions for connecting to the Internet, setting up a small network, and troubleshooting
    ============================
    What to do when you can't connect to the Internet
    Also, run the Airport Utility app which is located inside the Utilities folder.
    =====================
    If using a  Linksys router, contact LinkSys Customer Support and/or post in their forums.
    If using Apple's Airport, please re-post over in one of the AirPort Forums.

  • Since upgrading to OSX Mavericks, my mbp retina will lose wi-fi every time it wakes from sleep.

    When waking from sleep, my default home connection is lost, and it usually cannot re-connect until I turn off and back on wi-fi.

    Hi.  I'm experiencing the same problem, but it's on a 2007 iMac.
    When it wakes from sleep, it does not connect to the preferred network.  The preferred network is visible, yet when we select it, it asks for the password again -- which I know it is entered correctly -- but the password is refused.  A full reboot is required for it to work properly.
    It's an iMac, mid 2007, connecting to a Time Machine, using WPA/WPA2 security.  All other devices (eg, iPad, iPhone and an other iMac) do not have this issue. 
    Workaround: I don't let that iMac go to sleep.
    Speculation: It's as if when it wakes from sleep it thinks it a different type of security setting
    I have not yet found a proper/permanent solution.
    Note: I do have TrendMicro Internet security installed, but it is also on the the other iMac and I have tried it with it off and the problem still occurs, thus I doubt it has much to do with it.
    Puzzled,
    Mike.

  • "No Internet Connectivity" error message when trying to access Cloud

    I have a Motorola Droid Mini.
    When I try to open the cloud,  I get the message "No Internet Connectivity - We have detected that your phone does not have internet connectivity."
    I'm looking at a solid, full bars wifi signal on my phone
    It says I'm connected in the wifi menu
    I've tried restarting my phone.
    I've tried connecting it to my computer
    Why does my phone have no internet connectivity?
    Is there a fix?

    I simply uninstalled the updates.  It's working now.  Forgot the uninstall/reinstall phase of troubleshooting.

  • Why would I want to change JPEG quality of photos when exporting them from iPhoto?

    Why would I want to change JPEG quality of photos when exporting them from iPhoto?  Changing the quality of the print changes the size of the saved file and thus impacts the speed at which it is moved on the internet.  But other than size of the file, what is the advantage of changing the quality?

    I have no idea why you would want to do anything
    Some people want lower quality to reduce file size for different reasons
    It is an option - if you do pot want to do that do not use that option
    LN

  • Configure internet connection - how to use compute...

    Hi All,
    Just received a new Nokia phone with GPS and installed OVI suite.
    I tried to figure out how to use my computer inter setting to get content for my phone (maps etc..).
    The OVI suite doesn't detect my internet connection used on my computer but always tries to connect using my phone.
    There exists the manual option but I don't know which setting to fill in: "access point", "user name" and password.
    These seems like a very simple thing, but I didn't figure it out.
    On my computer I have a LAN connection and wireless connection. Don't know why OVI suite doesn't detect these automatically.
    Thanks for any suggestions.
    Bart
    ps: I already learned from my internet searches that OVI suite is no fun to use.

    For any content other than Maps.. Download it on to your PC.. Then connect the phone to install it... For Maps... connect your phone to PC using the USB cable (PC Suite Mode).. Launch OVI Suite and go to Maps in its Menu. After some time the Phone will set up and when the OVI Suite connects to the Maps server you will see the list of countries.. Select the Maps you want and follow instruction on the screen.. It will be downloaded and installed on the phone in due time. It will not use the Phone internet but the PC's internet connection...
    BTW which phone do you have ?
    --------------------------------------------------​--------------------------------------------------​--------------------------------------------------​--If you find this helpful, pl. hit the White Star in Green Box...

  • When my MacBook pro late 2011 wakes from sleep i have it set to make me enter my password, but when that pace comes up the resolution of it is smaller than my screen. Why is this happening?

    When my MacBook pro late 2011 wakes from sleep i have it set to make me enter my password, but when that pace comes up the resolution of it is smaller than my screen. Why is this happening?

    I was at the Apple Service. The problem was the 750Gb Toshiba HDD. It's incredible what noise can make that little thing
    I didn't know the hdd position is on left on MBP 17" ,  I thought is the same position like MBP15"
    I did't lose any kind of data.. it was fix on time.
    Anyway, thank u guys....and don't forget that noise !!!  
    P.S. I'll make a song with that noise sample to remember it

  • Why do my programs close when computer goes to sleep

    why do my programs close when computer goes to sleep?

    What do you mean by "close"? Your open applications stay open when you put your computer to sleep. However, if you have an app like iMovie open, for example, and you are exporting a video, than exporting will pause when your computer is asleep.

  • My Mac Pro loses network connection after wake from sleep since Yosemite upgrade.

    Mac Pro loses network connection after wake from sleep since Yosemite upgrade. Any one have this issue as well. And is there a work around?

    Wi-Fi?
    Wi-FI connection drops
    Wi-Fi Problems in OS X Yosemite
    Wi-Fi Problems in OS X Yosemite (2)
    Wireless Diagnostics
    Also try turning off Bluetooth.
    Troubleshooting Wi-Fi issues in OS X
    Wireless Connection Problems - Fix
    Wireless Connection Problems - Fix (2)
    Wireless Connection Problems - Fix (3)
    Wireless Connection Problems - Fix (4)

  • Why do  my ipod keep saying cannot connect to itunes when i am downloading a game

    why do my ipod keep saying cannot connect to itune when i am downloading a game

    See the previous discussions listed on the right side of this page under the heading More Like This.
    Also see:
    Can't connect to the iTunes Store

  • Internet connection times out when downloading update ios5. get to last 0.01 of date, says processing file and then says connection timed out. impossible. is there a fix?

    Internet connection times out when downloading update ios5. get to last 0.01 of data, says processing file and then says connection timed out. Is there a fix?
    I am using itunes 10.5. Update didnt work on last software but restore did work. Help

    After two days of attempts, Google & Apple searches, one Apple post stated to turn off all firewalls and virus software and keep trying since there were 6 gazillion people trying to update.  I have Windows 7 & Kaspersky and had to diable every single safety feature in Kaspersky as well as Firewalls and it finally allowed the download and update attempt. 
    Glancing at the forum, there appears to be numerous other problems with missing pictures, text problems etc after the IOS5 download but fortuneately, everything seems ok so far.  Good luck, it is frustrating!  Hattie47

Maybe you are looking for