Computer randomly goes to sleep and not waking up

My computer randomly goes to sleep-while I'm using it, and it won't wake up. Any suggestions? Is it something I'm doing?

Check temperatures by using Temperature Monitor -application. Atleast Macbook did this when there was problem with temps, cleaning heat sink and reapplying thermal solved the problem. G5 -based iMacs are known for running very hot temperatures and there was all kinds of motherboard failures as well as power supplies going bad.

Similar Messages

Premiere Pro is going to sleep and not waking up?

If I leave it for any time while I am working in another application and come back to it, the program refuses to play back. Shutting down the software and restarting doesn't work either, rebooting the machine seems to be the only fix. I am cutting on an i7 iMac with 32 Gb ram and using two thunderbolt equipped RAID drives. This isqsue shappens irrespective of whether the media is held on the external drive or on the internal HD?

I found a solution to another problem with PP maybe it will help you as well. Try to turn of any setting in you graphic card that has to do with OpenGL and see if that helps.
I am using PP CS6, Win7 and a nVidia Quadro1000M. Maybe it will also work on an iMac with ATI graphics.
For more information see this post: http://forums.adobe.com/message/5884237#5884237
Let me know if this helped.

MacBook Pro went for sleep and not waking up

mAC bOOK pRO WENT TO SLEEP AND NOT WAKING UP

Contact Apple.
You can try Reset SMC
http://support.apple.com/kb/HT3964

My computer is going to sleep and wont wake up by touching keyboard or mouse. I have to use the power button

Can anybody help? My computer is going to sleep and I cant wake it(bit like a teenager) by using the mouse or keyboard. I have to use the power button. Any ideas?

Hmm, that support link doesn't like me.
Do you have the discs that came with the computer? If so, put Install Disc 1 into the combo drive and boot up while holding the C key. Does anything show up on the screen? Do you hear the fan running? When running from a CD or DVD, the fan usually runs at a fairly fast pace and should make some noise.
Keep in mind that you have a 1-year hardware warranty with any new or refurbished Mac, so if something has gone wrong, you should be able to have it replaced free of charge, unless the MacBook shows some form of damage.
~Lyssa

Macbook Pro Randomly Goes to Sleep and Wont Wake Up

My Macbook Pro started having this problem a few months ago and it has gotten progressivly worse and worse. It will randomly go to sleep but I wont be able to wake it back up. The keys are lit up and the light on the front is pulsing, but no matter what I do it wont wake up. So I have to do a hard reset to turn it back on. This happens a few times a day so its pretty infuriating. I have read on other forums about people having this same problem but havent been able to find a solid solution.
Here is what kind of Macbook I have:
And here is the error report that I get once I restart my computer:
Interval Since Last Panic Report: 31393 sec
Panics Since Last Report:          1
Anonymous UUID:                    2A38817B-6AB8-4315-89C6-23BAD302635F
Thu Oct 25 18:07:56 2012
panic(cpu 3 caller 0xffffff7f80926007): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff809fb4f000 0x0a5480a2, D0, P3/4
Backtrace (CPU 3), Frame : Return Address
0xffffff8076462a00 : 0xffffff8000220792
0xffffff8076462a80 : 0xffffff7f80926007
0xffffff8076462b10 : 0xffffff7f80a1eb83
0xffffff8076462b70 : 0xffffff7f80a1ebf7
0xffffff8076462be0 : 0xffffff7f80d20855
0xffffff8076462d20 : 0xffffff7f80a42ddd
0xffffff8076462d50 : 0xffffff7f8092fd6a
0xffffff8076462e00 : 0xffffff7f8092b43c
0xffffff8076462ff0 : 0xffffff7f8092c668
0xffffff80764630c0 : 0xffffff7f81e52f36
0xffffff8076463200 : 0xffffff7f81e530e9
0xffffff8076463210 : 0xffffff7f81e82fab
0xffffff80764637e0 : 0xffffff7f81e10ef8
0xffffff8076463860 : 0xffffff7f81e13c07
0xffffff80764638a0 : 0xffffff7f81e5cf40
0xffffff80764638f0 : 0xffffff7f81e1133c
0xffffff8076463930 : 0xffffff7f81e070d7
0xffffff8076463aa0 : 0xffffff7f81e4bd6d
0xffffff8076463b60 : 0xffffff7f81e04346
0xffffff8076463bc0 : 0xffffff8000655f3e
0xffffff8076463be0 : 0xffffff800065681a
0xffffff8076463c40 : 0xffffff8000656fbb
0xffffff8076463d80 : 0xffffff80002a3f08
0xffffff8076463e80 : 0xffffff8000223096
0xffffff8076463eb0 : 0xffffff80002148a9
0xffffff8076463f10 : 0xffffff800021bbd8
0xffffff8076463f70 : 0xffffff80002aef10
0xffffff8076463fb0 : 0xffffff80002daec3
      Kernel Extensions in backtrace:
         com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f808 bf000->0xffffff7f80bbafff
            dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f80849000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[7C8672C4-8B0D-3CCF-A79A-23C62E90F895]@0xff ffff7f808ad000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[D0A1F6BD-E66E-3DD8-9913-A3AB8746F422]@0 xffffff7f80874000
         com.apple.nvidia.nv50hal(7.3.2)[38ACBB3D-4E3C-3883-9A4B-67F15592905F]@0xffffff7 f80bbb000->0xffffff7f80eddfff
            dependency: com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f808 bf000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f80849000
         com.apple.GeForce(7.3.2)[7E1D7726-416F-3716-ACCB-E1E276E35002]@0xffffff7f81df90 00->0xffffff7f81ebbfff
            dependency: com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f808 bf000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[7C8672C4-8B0D-3CCF-A79A-23C62E90F895]@0xff ffff7f808ad000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f80849000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[D0A1F6BD-E66E-3DD8-9913-A3AB8746F422]@0 xffffff7f80874000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
11G63
Kernel version:
Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 18534465488729
last loaded kext at 5206568982077: com.apple.driver.AppleUSBCDC    4.1.22 (addr 0xffffff7f80795000, size 16384)
last unloaded kext at 5267055475083: com.apple.driver.AppleUSBCDC    4.1.22 (addr 0xffffff7f80795000, size 12288)
loaded kexts:
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.driver.AudioAUUC    1.59
com.apple.driver.AppleMikeyHIDDriver    122
com.apple.driver.AppleHDA    2.2.5a5
com.apple.driver.AppleUpstreamUserClient    3.5.9
com.apple.driver.AppleMikeyDriver    2.2.5a5
com.apple.driver.AGPM    100.12.75
com.apple.driver.AppleIntelHDGraphics    7.3.2
com.apple.driver.AppleIntelHDGraphicsFB    7.3.2
com.apple.driver.SMCMotionSensor    3.0.2d6
com.apple.driver.AppleSMCPDRC    5.0.0d8
com.apple.iokit.IOUserEthernet    1.0.0d1
com.apple.GeForce    7.3.2
com.apple.iokit.IOBluetoothSerialManager    4.0.8f17
com.apple.driver.AppleSMCLMU    2.0.1d2
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AudioIPCDriver    1.2.3
com.apple.driver.AppleMuxControl    3.1.33
com.apple.driver.ApplePolicyControl    3.1.33
com.apple.driver.ACPI_SMC_PlatformPlugin    5.0.0d8
com.apple.driver.AppleLPC    1.6.0
com.apple.driver.AppleMCCSControl    1.0.33
com.apple.filesystems.autofs    3.0
com.apple.driver.AppleUSBTCButtons    227.6
com.apple.driver.BroadcomUSBBluetoothHCIController    4.0.8f17
com.apple.driver.AppleUSBTCKeyboard    227.6
com.apple.driver.AppleUSBCardReader    3.0.6
com.apple.driver.AppleIRController    312
com.apple.iokit.SCSITaskUserClient    3.2.1
com.apple.driver.XsanFilter    404
com.apple.iokit.IOAHCISerialATAPI    2.0.3
com.apple.iokit.IOAHCIBlockStorage    2.1.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless    1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.BootCache    33
com.apple.driver.AppleSmartBatteryManager    161.0.0
com.apple.driver.AppleFWOHCI    4.9.0
com.apple.driver.AirPort.Brcm4331    561.7.22
com.apple.iokit.AppleBCM5701Ethernet    3.2.4b8
com.apple.driver.AppleUSBHub    5.1.0
com.apple.driver.AppleEFINVRAM    1.6.1
com.apple.driver.AppleAHCIPort    2.3.1
com.apple.driver.AppleACPIButtons    1.5
com.apple.driver.AppleUSBEHCI    5.1.0
com.apple.driver.AppleRTC    1.5
com.apple.driver.AppleHPET    1.7
com.apple.driver.AppleSMBIOS    1.9
com.apple.driver.AppleACPIEC    1.5
com.apple.driver.AppleAPIC    1.6
com.apple.driver.AppleIntelCPUPowerManagementClient    195.0.0
com.apple.nke.applicationfirewall    3.2.30
com.apple.security.quarantine    1.4
com.apple.security.TMSafetyNet    8
com.apple.driver.AppleIntelCPUPowerManagement    195.0.0
com.apple.driver.DspFuncLib    2.2.5a5
com.apple.iokit.IOSurface    80.0.2
com.apple.iokit.IOFireWireIP    2.2.5
com.apple.iokit.IOSerialFamily    10.0.5
com.apple.iokit.IOAudioFamily    1.8.6fc18
com.apple.kext.OSvKernDSPLib    1.3
com.apple.driver.AppleHDAController    2.2.5a5
com.apple.iokit.IOHDAFamily    2.2.5a5
com.apple.driver.AppleGraphicsControl    3.1.33
com.apple.driver.AppleBacklightExpert    1.0.4
com.apple.driver.AppleSMBusPCI    1.0.10d0
com.apple.nvidia.nv50hal    7.3.2
com.apple.driver.AppleSMC    3.1.3d10
com.apple.driver.IOPlatformPluginLegacy    5.0.0d8
com.apple.driver.IOPlatformPluginFamily    5.1.1d6
com.apple.driver.AppleSMBusController    1.0.10d0
com.apple.NVDAResman    7.3.2
com.apple.iokit.IONDRVSupport    2.3.4
com.apple.iokit.IOGraphicsFamily    2.3.4
com.apple.kext.triggers    1.0
com.apple.driver.AppleUSBBluetoothHCIController    4.0.8f17
com.apple.iokit.IOBluetoothFamily    4.0.8f17
com.apple.driver.AppleUSBMultitouch    230.5
com.apple.iokit.IOSCSIBlockCommandsDevice    3.2.1
com.apple.iokit.IOUSBMassStorageClass    3.0.3
com.apple.iokit.IOUSBHIDDriver    5.0.0
com.apple.driver.AppleUSBMergeNub    5.1.0
com.apple.driver.AppleUSBComposite    5.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice    3.2.1
com.apple.iokit.IOBDStorageFamily    1.7
com.apple.iokit.IODVDStorageFamily    1.7.1
com.apple.iokit.IOCDStorageFamily    1.7.1
com.apple.iokit.IOSCSIArchitectureModelFamily    3.2.1
com.apple.iokit.IOFireWireFamily    4.4.8
com.apple.iokit.IO80211Family    420.3
com.apple.iokit.IOEthernetAVBController    1.0.1b1
com.apple.iokit.IONetworkingFamily    2.1
com.apple.iokit.IOUSBUserClient    5.0.0
com.apple.iokit.IOAHCIFamily    2.0.8
com.apple.driver.AppleEFIRuntime    1.6.1
com.apple.iokit.IOHIDFamily    1.7.1
com.apple.iokit.IOUSBFamily    5.1.0
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.sandbox    177.8
com.apple.kext.AppleMatch    1.0.0d1
com.apple.driver.DiskImages    331.7
com.apple.iokit.IOStorageFamily    1.7.2
com.apple.driver.AppleKeyStore    28.18
com.apple.driver.AppleACPIPlatform    1.5
com.apple.iokit.IOPCIFamily    2.7
com.apple.iokit.IOACPIFamily    1.4
Unable to gather system configuration information.Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i7, 2.8 GHz, 4 GB, SMC 1.58f16
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334648302D4346382020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334648302D4346382020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.198.19.22)
Bluetooth: Version 4.0.8f17, 2 service, 18 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: ST9500325ASG, 500.11 GB
Serial ATA Device: MATSHITADVD-R   UJ-898
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa130000 / 5
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0xfa120000 / 4
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8218, 0xfa113000 / 6
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 4
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0xfd110000 / 3
Can anyone help me? Thanks in advance!

Hey this was happening to me too! So i called apple care, i have a the Late 2011 Macbook Pro, and this is what they suggested:
1. open system preferences
2. open engery saver
3. look at "Computer sleep" and move it over to a longer time period
          for instance I had mine at 5 minutes so thats why it would go to sleep all the time
     -now I set it to 25 minutes
Hope that fixes your problems!

HT4199 How do I stop my Computer from going to sleep and disconnecting from wi-fi during downloads

Sometimes my iMac goes to sleep while I'm in the process of downloading updates, etc and disconnects me from my Wi-fi. Is there a way to change this setting?

Hello rnash62. I understand you'd like to automatically log into your Administrator account when waking from sleep.
What notebook do you have? Please identify it by the product number. This document can show you where it is located.
What version of Windows are you running?
Once I have this information I should be able to provide you with instructions.
I hope you have a great day and an amazing weekend!
Please click the white star under my name to give me Kudos as a way to say "Thanks!"
Click the "Accept as Solution" button if I resolve your issue.

Airdisk falling asleep and not waking up

what i thought might be a partitioning error/issue might be another thing altogether... let's start from the top. lots of random details follow, but something might be the kicker.
i have an older AEBS (non-dual-band, non-giga-bit, circa 2007) in another room (garage -- with all of the other panels, switches, etc.) that distributes a signal to the whole house -- specifically to two airport express base stations (delivering music, printer sharing, etc.). the AEBS is sending out a G/N signal (for iphones, network cameras, etc.) and one of the expresses is sending out an N-only (for my macbook).
the purpose of the AEBS is three-fold. (1) to provide wireless connectivity (2) to serve as a conduit to a backup airdsk for (a) general computer/home theater backups and (b) a consistent repository for a network (security) camera feed fed through "security spy" via a mac mini (home theater hub) which is hard-wired to the network via whole-house ethernet (belkin hub in the garage ties it all together). the camera itself is wireless (G-speed).
over the past few weeks, i've been getting very poor throughput on the wireless network -- speed bumps back up (from <1bps to >20mbps) when plugged into the ethernet network (as viewed through speakeasy's speedtest).
ok. the issue is that the new 2TB lacie harddrive is going to "sleep" and not waking up. it works fine for about 1/2 hour after hookup or "hard" wake-up (restart AEBS/drive).
previously (as few as 5 weeks ago, i had a smaller lacie drive (1TB) serving the same function flawlessly.
so... is this new airdisk issue due to:
-- the AEBS not liking the 2TB size?
-- the AEBS giving signs of failure (esp. with the network issues noted above)
-- is the new lacie drive either (a) a DOA-failure or (b) doing its job by falling asleep (if so, it'd be a new 1TB>>2TB feature)...
-- user error
-- something completely random...
thanks for any wisdom you can lend...

I have pretty much the same setup with the same model AEBS and I get the same problem with a 2TB Western Digital drive plugged in. I solved this problem a month ago by updating my system to Snow leopard and updating firmware to the base station and rebuilding pretty much the whole network. But it came back this weekend. Is driving me crazy!
(Side note: I also use that drive as a wireless Time Machine backup but can only get it to work reliably with my wife's Macbook not my own- which actually worked for a weekend but then decided that was enough.)

Computer keeps going to sleep even though it is set up not to

I recently helped a friend set up his iMac to stream to his home stereo system so things like Pandora could be played throughout the house. The problem we are having is his computer keeps going to sleep and back to the log-in screen. In energy saver, we set the computer and display to never go to sleep. We also un-checked the box that says "put the hard disks to sleep when possible." Even after doing this, the display still goes dark and when the mouse is moved to turn the screen on it is back at the log in screen. This causes pandora to stop playback, which is not good since this is why we set up the streaming in the first place. Why is the computer still going to sleep when we are telling it to never do so?

HI Ty,
Couldn't hurt to check the hard disk.
Follow these instructions to verify the hard disk for errors:
Open Disk Utility, in the Utilities folder in the Applications folder.
Select your disk, and click First Aid.
Click Verify Disk.
If the disk needs repairs, do one of the following:
Insert your Mac OS X Install disc in your computer’s optical drive or an optical drive connected to your computer, and then restart your computer. When you hear the startup tone, hold down the C key until you see the progress indicator, which looks like a spinning gear.
Follow the onscreen instructions until the menu bar appears with the Utilities menu in it, choose Utilities > Disk Utility, click First Aid, and then click Repair Disk. When Disk Utility is finished, from the Menu Bar select Utilities/Startup Disk. Select MacintoshHD 10.5 in the window and click: Restart
If you don’t have a Mac OS X Install disc, restart your computer while holding down the Shift key. As your computer starts up, it performs a disk check similar to the one Disk Utility performs.
Carolyn

My e9107c desktop goes to sleep and them in a few hours or minutes has an unexpected power failure.

My computer goes to sleep, will wake up and run fine. It never fails while using it for hours. Once I leave it, it will go to sleep. If I come back and it is asleep it will come back on and work fine. However if while its asleep it has an unexpected power failure I have to turn on the computer and it will restate and work fine. Its like it goes to sleep and forgets it needs power and shuts off but doesn't shut down the operating system and causes a kernal 41 error.
If it were a power supply failure or an over heating problem I would expect it to occure while using the system, not during sleep mode when everything powers down. It used to work fine but the last few months the problem showed up. If I shut down the computer and them come back and turn it on it works fine. So I just don't let it go to sleep and turn it on and off.
Any idea why it would loss power while sleeping?

I think I have resolved my problem by uninstalling my cell phone software : Sony Ericsson PC Companion 2.0 I found that this program was interfering with windows when I wanted to turn off my computer and stopped shut down. It interfered more after two recent upgrades. I don't think Sony Ericsson has very good programer, because the more they upgrade the program the more it conflicted with Windows 7 64 bit OS I had this program on my system for a long time before the problem arose. I uninstalled the program and noticed my system ran better. It shut down without forcing any program to end. Since there was such a dramatic change in how the system worked, I tried to reset my computer to go to sleep and not shut it down. It works a designed and no longer loses power while sleeping. I didn't think an installed program could affect this feature but apparently it can.

Powercfg sets power plan with never sleep but system goes to sleep and locks the screen

I created a command (.bat) file that executes 'Powercfg -s 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c' where '8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c' is the class name for power option (HighPerf) that sets sleep to never. Then I created a scheduler's task to execute
this command file at specified time. The goal here is to switch at this time from power option that has sleep in 1 hour (Balanced) to the power option that never sleeps.
At the designated time the power option changes from Balanced to HighPerf but after some time computer both goes to sleep and locks the screen. I do not know whether this happens at the same time or not. It is just that when I get to my computer some time
(2 hours) later, it is in the sleep mode (the light on the power button is amber), I need to press the power button to wake it up and when it comes to life I find out that the screen is locked and I need to enter the password.When I open Control Panel it shows
that HighPerf power option is selected. Yet, the computer went to sleep and the screen got locked.
All this does not happen when I set HighPerf power option from the Control Panel.
I am using Dell XPS 8500 desktop with Windows 7 Home Premium, so battery and closed lid settings do not apply as they do not exist on this computer, so those settings are not at issue.
Thank you
Isa Ten

Hi Isa,
Based on your goal "The goal here is to switch at this time from power option that has sleep in 1 hour (Balanced) to the power option that never sleeps.", why didn't you set the Balanced option to never sleep?
If you just ant it at one time to switch, you need another task to change back. Otherwise, it keep "never sleep" and "high perf"status.
Meanwhille, check your hibernate status of these power plan under sleep tab:
Power Options->Change Plan Settings->Change Advanced settings, you see a tap "Sleep"
Karen Hu
TechNet Community Support

My iMac 27 2010 vintage goes to sleep and won't wake up...I have to push the on off button and hold till it shuts down and then re start...This is not good..Help please

My mac iMac 27 2010 vintage goes to sleep and won't wake up till I hold the on off power button....Then I have to restart as it is locked up....This it intermittent..
Help Please
Jim

Ops I replied to myself in error.....
Tom:
I performed the steps indicated but this morning when I clicked the mouse and hit the space key and clicked the track pad again as before nothing happens.
I hold the power button for a few seconds and the screen fills as if the computer was normally awakened but it is locked up.
Then I have to shut it down with the power button and then power it up as a reboot.
Not good...SMC reset didn't work....Throughout the day yesterday I put the computer to sleep and woke it up normally. It seems to be a overnight problem.
Am I going to have to shut it down everynight?
Jim

HT1776 I have the Energy Saver setting set to NEVER on both options, and my computer STILL goes to SLEEP after 1 hour. Please help!

I have the Energy Saver setting set to NEVER on both, and my computer STILL goes to SLEEP after 1 hour. Please help!
My COMPUTER goes to sleep and disrupts my apple tv all the time. How can I fix this?

That you are getting the BONG is a good sign, it's unlikely to be hardware if you are able to hear that.
Start by running SW update. It's not that there is a specific fix, but when updating it may rewrite some system files which may get this going again purely as a side affect. Worth a go, and should not harm the system.
Try reset the PRAM - Resetting your Mac's PRAM and NVRAM
Hopefully one of these quick fixes works, otherwise we'll need to try isolate the issue next - so if still having a problem, I'd try create a new user and login as that user to see if the issue persists (which will tell us if it's system wide or user specific)

Internet goes stale after computer goes to sleep and then needs to be rebooted to function properly

I mac with retina 5k display
internet goes stale after computer goes to sleep and then needs to be rebooted to get it working again
10.10.1 os

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

Is itunes store down its 9:36 date is saterday march 24 and im trying to download a app and up date a app and after it goes to sleep and i come back on to my ipod touch 4th gen it make me type in my pass word so basicly its not donlading

is itunes store down its 9:36 date is saterday march 24 and im trying to download a app and up date a app and after it goes to sleep and i come back on to my ipod touch 4th gen it make me type in my pass word so basicly its not donlading

Can't connect to the iTunes Store
Best Fixes for ‘Cannot Connect to iTunes Store’ Errors | iPad Insight

What I m trying to say is that ,my WIFI or also knowing as wireless connection that is no cable! OK ! So my Wi-Fi is not staying connected to my router ever time it goes to sleep and after it comes back its asking my to reconnect to Wi-Fi. NOT STAYING C

What I m trying to say is that ,my WIFI or also knowing as wireless connection that is no cable! OK ! So my Wi-Fi is not staying connected to my router ever time it goes to sleep and after it comes back its asking my to reconnect to Wi-Fi. NOT STAYING C

Why did you start a new thread. Just respond on the same thread you started.
Click the Reply button on a post that you wish to reply to.

Computer randomly goes to sleep and not waking up

Similar Messages

Maybe you are looking for