HT1750 why does my iMac log off wifi

Why does my imac keep logging off of wifi? Why cant i stream music?

Are you up-to-date on your software? Apple produced a fix in late February for this, which fixed it for many. Some have indicated, however, that it didn't solve it for them. If you can't download the fix via Software Update, it's located at
http://support.apple.com/kb/DL1501

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Why does my iMac power off?

After 5 or 10 minutes of use, I hear a "ping" like a the sound of a light bulb burning out, the screen goes black and the iMac has turned itself off. I can turn it back on with the power button, but it just happens again.
Is this what is meant by "crashing?"
Where do I begin to diagnose?
Thanks.

Posting here instead of its own thread because I am having the same problem on 20'' iMac G5 (pre-integrated iSight, purchased in August 2005) running Mac OS X 10.4.11.
It powers off unexpectedly (not normal shutdown--sudden interrupt as if plug was pulled). It doesn't happen after any set period of time--sometimes shortly after startup, sometimes after it's been on for hours.
I tried resetting the PMU as per the Support directions. No change, although I wasn't sure if I actually did it correctly--the directions were simple, but there was no confirmation tone or anything like that.
I tried resetting PRAM. No observable changes.
I don't think it's a heat issue since the computer has even powered itself down like this while asleep!
I suspect it's a hardware issue, but before I take it in somewhere (it's still covered by Applecare), I though I had better ask you knowledgeable folks if there were any other steps I could do on my own. It'd be a bad time of year to be without my Mac for even a few...days? Weeks? How long might this fix take? =(
Thanks in advance for any insight you can provide
P.S. If I should go ahead and give this its own thread instead, let me know

Why does my iMac turn off unexpectedly?

I have had my iMac for over two years and never had this problem. It has just started about two weeks ago. About 30 minutes or so, maybe shorter or longer, after I turn it on, this gray bar goes over the screen and then a message appears. It says to please turn off or restart the computer. What can I do to stop this. I've heard that it might be an overheating problem, but I'm not sure.

Hello Fredrick. Welcome to Apple Discussions.
If the screen is in multiple languages as per the following link, then you are experiencing a kernel panic.
What is a Kernel panic?
It is difficult to pin down but is often a hardware related matter. Sometime failing RAM can lead to this problem as well.
Consider the exploration of this topic in the following link.
Resolving Kernel Panic's by Dr Smoke

Why does my iMac display go off when I am starting up or waking up my machine from sleep..

Why does my iMac display go off when I am starting up or waking up my machine from sleep..?
When my iMac goes to sleep I then later try to click the magic track pad or keyboard and it will usually then show the initial password entry login screen and then go off. The machine is still on but the display is black and will sometimes flash up the screen again if I press the magic track pad or keyboard but will then black out again..

Well, there are many different reasons why it does this. It might shut off due to power voltage problems, system overheats, or there is a System Problem. The reason it might be hard to boot up is because your power button might not work properly or your system hard drive is damaged.
<Email Edited by Host>

Why does my iMac (on occasion) not shut down, warning message comes on saying i have to switch off by pressing and holding the power button then restart,

Why does my iMac (on occasion) not shut down, warning message comes on saying i have to switch off by pressing and holding the power button then restart, something to do with a Panic report?
Thanks
Brian

Hi mende1,
you asked me to post the Kernal panic report then next time it appears, sorry for the delay but it was fine until yesterday when it happened again so here it is, hope you can make sense of this, thank you for your help.
Regards
Brian
Interval Since Last Panic Report: 97797 sec
Panics Since Last Report:          1
Anonymous UUID:                    17D8F909-09A9-4BC6-A153-A12F75529506
Sun Jan 27 09:32:57 2013
panic(cpu 0 caller 0xffffff80002c4794): Kernel trap at 0xffffff80002b4b31, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x00000000800a9118, CR3: 0x0000000000100000, CR4: 0x0000000000000660
RAX: 0xffffff80008c2028, RBX: 0x00000000800a9100, RCX: 0xffffff800ae5bf00, RDX: 0x0000000000000080
RSP: 0xffffff8078713e68, RBP: 0xffffff8078713eb0, RSI: 0x000000005aefd876, RDI: 0x00000000800a9118
R8: 0x0000000000000010, R9: 0x0000000000000000, R10: 0xfffffe802662d000, R11: 0x00080000000263f3
R12: 0xffffff8078713f60, R13: 0xffffff8078713f78, R14: 0x0000000000000000, R15: 0x00000000800a9118
RFL: 0x0000000000010002, RIP: 0xffffff80002b4b31, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0x00000000800a9118, Error code: 0x0000000000000000, Faulting CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff8078713b10 : 0xffffff8000220792
0xffffff8078713b90 : 0xffffff80002c4794
0xffffff8078713d40 : 0xffffff80002da55d
0xffffff8078713d60 : 0xffffff80002b4b31
0xffffff8078713eb0 : 0xffffff80002352a5
0xffffff8078713ec0 : 0xffffff800036489d
0xffffff8078713ee0 : 0xffffff8000345031
0xffffff8078713fb0 : 0xffffff8000820057
BSD process name corresponding to current thread: kernel_task
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: iMac10,1 (Mac-F2268CC8)
System uptime in nanoseconds: 1750251829240
last loaded kext at 51464252613: com.apple.filesystems.msdosfs          1.7.1 (addr 0xffffff7f815c7000, size 57344)
last unloaded kext at 215848970782: com.apple.driver.AppleFileSystemDriver          13 (addr 0xffffff7f825c2000, size 12288)
loaded kexts:
com.vmware.kext.vmnet          3.0.0
com.vmware.kext.vmioplug          3.0.0
com.vmware.kext.vmci          3.0.0
com.vmware.kext.vmx86          3.0.0
com.apple.filesystems.msdosfs          1.7.1
com.apple.driver.AppleBluetoothMultitouch          70.12
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.iokit.IOBluetoothSerialManager          4.0.8f17
com.apple.driver.AudioAUUC          1.59
com.apple.driver.AppleUpstreamUserClient          3.5.9
com.apple.GeForce          7.3.2
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleHDA          2.2.5a5
com.apple.driver.AppleMikeyDriver          2.2.5a5
com.apple.driver.AGPM          100.12.75
com.apple.driver.AppleBacklight          170.2.2
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.2.3
com.apple.driver.ApplePolicyControl          3.1.33
com.apple.driver.ACPI_SMC_PlatformPlugin          5.0.0d8
com.apple.driver.BroadcomUSBBluetoothHCIController          4.0.8f17
com.apple.driver.AppleIRController          312
com.apple.driver.AppleUSBCardReader          3.0.6
com.apple.iokit.SCSITaskUserClient          3.2.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          33
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCISerialATAPI          2.0.3
com.apple.iokit.IOAHCIBlockStorage          2.1.0
com.apple.driver.AppleAHCIPort          2.3.1
com.apple.nvenet          2.0.17
com.apple.driver.AppleUSBHub          5.1.0
com.apple.driver.AirPort.Atheros40          505.67.1
com.apple.driver.AppleUSBEHCI          5.1.0
com.apple.driver.AppleUSBOHCI          5.1.0
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleFWOHCI          4.9.0
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleACPIButtons          1.5
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.AppleBluetoothHIDKeyboard          160.7
com.apple.driver.AppleHIDKeyboard          160.7
com.apple.driver.AppleMultitouchDriver          231.4
com.apple.driver.IOBluetoothHIDDriver          4.0.8f17
com.apple.kext.triggers          1.0
com.apple.iokit.IOSerialFamily          10.0.5
com.apple.nvidia.nv50hal          7.3.2
com.apple.NVDAResman          7.3.2
com.apple.driver.DspFuncLib          2.2.5a5
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.driver.AppleHDAController          2.2.5a5
com.apple.iokit.IOHDAFamily          2.2.5a5
com.apple.iokit.IOSurface          80.0.2
com.apple.iokit.IOAudioFamily          1.8.6fc18
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.AppleGraphicsControl          3.1.33
com.apple.iokit.IONDRVSupport          2.3.4
com.apple.iokit.IOGraphicsFamily          2.3.4
com.apple.driver.AppleSMC          3.1.3d10
com.apple.driver.IOPlatformPluginLegacy          5.0.0d8
com.apple.driver.IOPlatformPluginFamily          5.1.1d6
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleUSBBluetoothHCIController          4.0.8f17
com.apple.iokit.IOBluetoothFamily          4.0.8f17
com.apple.iokit.IOUSBHIDDriver          5.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.2.1
com.apple.iokit.IOUSBMassStorageClass          3.0.3
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.IOAHCIFamily          2.0.8
com.apple.iokit.IOUSBUserClient          5.0.0
com.apple.iokit.IO80211Family          420.3
com.apple.iokit.IONetworkingFamily          2.1
com.apple.iokit.IOUSBFamily          5.1.0
com.apple.driver.NVSMU          2.2.9
com.apple.driver.AppleEFIRuntime          1.6.1
com.apple.iokit.IOFireWireFamily          4.4.8
com.apple.iokit.IOHIDFamily          1.7.1
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
Model: iMac10,1, BootROM IM101.00CC.B00, 2 processors, Intel Core 2 Duo, 3.06 GHz, 4 GB, SMC 1.52f9
Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.67.5-P2P
Bluetooth: Version 4.0.8f17, 2 service, 18 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: ST3500418ASQ, 500.11 GB
Serial ATA Device: OPTIARC DVD RW AD-5680H
USB Device: Ext HDD 1021, 0x1058 (Western Digital Technologies, Inc.), 0x1021, 0x24300000 / 3
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0x24400000 / 2
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0x26500000 / 3
USB Device: hub_device, 0x0409 (NEC Corporation), 0x0059, 0x26400000 / 2
USB Device: Tablet, 0x172f, 0x0037, 0x26410000 / 6
USB Device: Mass Storage Device, 0x058f (Alcor Micro, Corp.), 0x6362, 0x26430000 / 5
USB Device: USB 2.0 Hub [MTT], 0x1a40 (TERMINUS TECHNOLOGY INC.), 0x0101, 0x26440000 / 4
USB Device: JumpDrive, 0x05dc (Lexar Media, Inc.), 0xa205, 0x26441000 / 7
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x06110000 / 4

Why does my iMac display keep shutting off? Computer still running in the background. I've tried unplugging and restarting, to no avail.

Why does my iMac display keep shutting off? Computer still running in the background. I've tried unplugging and restarting, to no avail. The computer is well out of warranty - about 7-8 years old, running 10.6.8

Checked.... the settings had not been inadvertently changed, but I did move the scroll and reset them back to the original. Hasn't shut off again.... yet. Will re-post with follow-up one way or the other. Thanks.

Why does my iMac appear many times in my network and labelled 1,2,3, etc

why does my iMac appear many times in my network and labelled 1,2,3, etc

Ok, I solved it.
I followed this steps:
1- Turn Off Wi-Fi from the Wireless menu item
2- From the OS X Finder, hit Command+Shift+G and enter the following path:
/Library/Preferences/SystemConfiguration/
3- Within this folder locate and select the following files:
com.apple.airport.preferences.plist
 com.apple.network.identification.plist
com.apple.wifi.message-tracer.plist 
NetworkInterfaces.plist 
preferences.plist
4- Move all of these files into a folder on your Desktop called ‘wifi backups’ or something similar – we’re backing these up just in case you break something but if you regularly backup your Mac you can just delete the files instead since you could restore from Time Machine if needed.
5- Reboot the Mac
6- Turn ON WI-Fi from the wireless network menu again

Why does my iBookPro drop its WiFi connection so often?

My question: why does my iBookPro drop it WiFi connection so often, and what can I do to prevent it (or at least extend the duration of active connection)?
I have an iBookPro running OSX 10.9.5, with a 2.4 GHz Intel Core i5 processor and 8 GB 1600 MHz DDR3 RAM. I think my iBookPro is about 3 or 4 years old.
What seems to happen is that I will use my iBookPro accessing mail & websites for a few minutes, and then when I try to send an e-mail, mail puts up a message that it cannot send mail with the selected server, so I need to either try a different server or try later. Meanwhile I notice that the WiFi signal indicator shows full service, but when I run diagnostics it shows that the internet is not connected. Opening the WiFi icon in the top menu bar shows that it is looking for Networks. After an indeterminate time it finds the network I have had highlighted and logged into (my WiFi -5G router) since I opened my iBook when I arrived at my office.
I often find I have to turn WiFi off, then back on, to get connection with the internet.
What's going on, and what am I missing?

Hello jBookProAm,
If you are having issues with your MacBook Pro with maintaining a Wi-Fi connection, then take a look at the articles below to get it sorted out. The first article will talk about using Wireless Diagnostics, which you have already done, but also you look at the additional troubleshooting within the article for assistance. You may want to also create a new location as another troubleshooting option and those steps are in the second article.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/en-ca/HT4628
Using network locations (Mac OS X v10.6 and later)
http://support.apple.com/en-us/ht5289
Regards,
-Norm G.

Why can't I log into WiFI?

Why can't I log into WiFi with my Ipad Air all of a sudden?
WiFi is turned on.
Under settings ... it shows the network Im trying to log into ... and in the column to the right where it lists the various networks, it shows the network i want and a little wheel thingie spinning beside it ... but it just keeps spinning ... so it looks like my Ipad had found the network ok, but wont log in.
Any thoughts?
Under HTTP proxy ... ive got it set to auto ... is this correct?
Everything worked fine until today so maybe Ive altered some setting without realizing it.

Try this:
1. Turn router off for 30 seconds and on again
2. Settings>General>Reset>Reset Network Settings
3. Reset iPad; hold the Sleep and Home button down until you see the Apple Logo

Why does my imac get a black screen when switching on

why does my imac get a black screen when turning on, and logging in is very slow.

I would first reset the SMC:
Shut down and unplug the Mac.
Keep the Mac unplugged for at least fifteen seconds.
Plug the Mac back in and do not turn it back on for at least five seconds.
Press the power button to turn the Mac back on.
Then I would reset the PRAM by rebooting the iMac while simultaneously holding the Command-Option-P-R keys until the machine restarts a second time.
Let us know if these procedures don't solve the problems.
Hope this helps

Why does my iMac only have 1 GB of memory? I hardly have anything on here. I cannot download software update in order to get Turbo Tax to work.

Why does my iMac only have 1 GB of memory?

Put in more RAM. Visit OWC, DataMem, or Crucial.com to purchase memory for your model. You computer would have more memory had you put more in a long time ago.

Why does my iBook connect to WiFi better than my much faster Macbook?

Why does my iBook connect to WiFi better than my much faster Macbook?

Because it has a RISC processor. Just brag about all the MHz or even GHz while you are waiting like other Intel users. Using my trusty G4 rather than MBP becase its simply faster.
/usr/bin/gcc-4.4 -mcpu=G4 -mpowerpc-gfxopt -maltivec -mabi=altivec -fsigned-char

Why does airport utility appear off center?

Why does airport utility appear off center on my iPad and laptop screen?

Because Apple's QA is sorely lacking.
give them feedback https://www.apple.com/feedback/airportextreme.html

Why does my iMac not show in Find My iPhone?

Why does my iMac not show in Find My iPhone? Is there something I should switch on?

System Preferences - iCloud - check mark Find my Mac.

Why does my Imac screen slide and I lose my screen? It goes back to my desktop. Then sometimes my screen goes to full screen and I don't know how to get out of it.

Why does my Imac screen slide and I lose my screen ~ It goes back to my desktop.
Then sometimes my screen goes to full screen without me doing any commands, and I don't know how to get out of it without going to force quit and starting all over.

Hi,
When it goes full screen try moving the mouse up to top right of scren & see if there a double diagonal Arrow to click on.
On the other see if it's the silly implentation of Spaces/Mission Control/Expose in ML...
https://discussions.apple.com/thread/4298411?start=0&tstart=0

HT1750 why does my iMac log off wifi

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