Macbook air keeps disconnecting from internet when going to sleep mode

New macbook air keeps losing Internet connection when going into sleep mode. Have tried deleting and re adding network and adding DNS 8.8.8.8 still is disconnecting.
Also, since Lion update 2 days ago Internet is very sluggish
HELPPPPPP!!!

You're not the only one. See here:
https://discussions.apple.com/thread/3704539?start=0&tstart=0
The current fix is to turn off sleep mode or use an Ethernet cable.

Similar Messages

My MacBook Air keeps disconnecting from the internet. Can some one please help me fix it.

It says that my wi-fi is still up but i wont load any pages.

Hello there, NicholasFromDawsonville.
The following Knowledge Base Article is a great resource for help with troubleshooting Wi-Fi:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro D.

MAC book air keeps disconnecting from my wifi, any solutions?

My macbook air keeps disconnecting from my wifi. I also have a hp spectre and ipad air that have no wifi issues, any help?

Hello sandman1261999,
I'd suggest taking a look through the following article, as it provides numerous tips and information that can help stabilize your MacBook Air's WiFi connection.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Cheers,
Allen

My new Mac Air continues to disconnect from WiFi after going to sleep. When waking it up I have to manually re-connect. How do I keep it connected?

My new Mac Air continues to disconnect from WiFi after going to sleep. When waking it up I have to manually re-connect. How do I keep it connected?

I had this problem too and solved it by doing a clean install. After that it was gone.
This is a drastic method since it takes quite some time to reinstall lion and all your software.
Thoughts I had why it started working after a clean install are the following:
It looked like the airport wasn't able to reconnect fast enough before the connection timed out. So what could have prevented my mac from being able to connect fast enough?
Apps that consume processor cycles. I love what I would call 'System Enhancers', little apps that enhance my workflow (Moom, Alfred, Dropbox, Default Folder etc). I'm not saying that these are the problem, they might be programmed processor friendly, but check if you have apps that consume processor cylcles. It might prevent airport from being able to reconnect quickly enough before it times out.
Mobile Config profiles. Another thought I had was that I had a mobile config 802.1X profile installed for the company were I worked. It used TTLS to connect to the corporate network. This profile might have gotten in the way.
And a sidenote...
Routers with hardware acceleration might also be a problem. My router is a Wireless Gigabit Router 300N WL-351 and has hardware acceleration. As soon as I activate that my wifi connection keeps dropping. It is as if a Macbook Air can't handle that amount of optimisation.
That's it, hope it helps those who are still having the problem.
Best, Jan

Suddenly my Mac Air keeps disconnecting from wi fi. Help!!

My Mac Air keeps disconnecting from wifi. Help!!

Read Wi-Fi: How to troubleshoot Wi-Fi connectivity
Please reply with how far you get with its suggestions.

Why does my macbook pro keep disconnecting from the internet?

For whatever reason my Macbook pro 15in keeps disconnecting from the internet everytime it goes to sleep. And sometimes when I wake it up, I have to turn wifi on and off a couple times to get it to detect the right signal. This does not happen with my playstation or my phone so it has to be a problem with the Macbook itself. Can anyone give me any information on how to fix this problem? Anything would be greatly appreciated.

Hello, amal111.
Thank you for visiting Apple Support Communities.
Here is an article that I would recommend going through when experiencing Wi-Fi connectivity issues. Also, make sure all firmware updates have been processed on the router and the settings have been adjusted to the recommended settings in the second article below.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
iOS and OS X: Recommended settings for Wi-Fi routers and access points
http://support.apple.com/kb/HT4199
Cheers,
Jason H.

My i pad is new at xmas it keeps disconnecting from internet my lap top is fine and ive tried resetting wi fi on i pad. can u help.

my i pad was brand new at xmas but keeps disconnecting from the internet. my lap top is fine and i have tried resetting the i pad. can u suggest anything else

Hi and thanks for your help, it was only my ipad that kept disconnecting from the internet but i think this happens when there are a lot of users on the same channel. it has been ok today so far, so, thanks again.

My macbook is two and half year old, going to sleep mode randomly

Having used this Macbook for almost two and half years, my machine has suddenly generated the problem of going to random sleep. It started as an infrequent thing, then it started happening on a regular basis, to the point that it became almost impossible to work with it. When the computer goes to sleep mode, it doesn't wake up with any key, it has to be woken up by pressing the power button lightly.
Here are the steps I took:
1. The normal thing I did was search Apple Forum and then reset SMC, PRam, then changed energy saving options, everything. Nothing worked.
2. Ran the hardware test and no problems found.
3. Ran the Macbook with all options: with just the battery, without the Magsafe connected, with Battery and Magsafe connected together, with battery removed and the computer running on Magsafe only. Random Sleep continues
4. Thought must be a connection issue and ran to Apple Store in Kolkata, India, thinking that it could be a connection issue with the sleep-mode cable. Apple Store kept the Macbook for seven days, saying that they needed to check the machine, returned it on the seventh day saying that the machine was fine and charged me Indian Rupee 1,500/- (about $ 34). I came back home and the problem persists.
(Here I would like to add that Apple Service in Kolkata *****, probably ***** all over India, simply because Apple is not a major player in this country. The service engineer at Apple Store was at a loss with my problem and after seven days could only say, "We have done our internal tests and found no problem with your Macbook." When I asked about the Sleep Mode sensor connection, he said, "That is working fine, we have checked that.")
5. After coming back home, I faced the same problem, this time with lesser time gap. It would go off to sleep every one minute or so. I decided to set my computer on "never to sleep mode" in the enery saving option. Alas, that didn't help either.
6. I redid the hardware check, only to find that my computer hasn't detected any hardware problem.
7. Now, as a previous Windows user, I thought that the problem must have been with the OS. So, at the risk of losing all my files, I decided to reload the OS. (My original OS DVD was Leopard, but it was later upgraded to Snow Leopard by the vendor free of cost). I took backup in Time Machine, and backed up the documents in another Disk and reloaded the OS. All seemed fine so far, for about 10 minutes. I was now confident that finally I could solve the problem and was then planning to migrate my previous files to my newly loaded OS-X. Alas, I was wrong. Before I could connect the external HDD to my computer, my Macbook went back to its previous trick of falling asleep.
I'll definitely take back my Macbook to Apple Care tomorrow, but with my experience here in Kolkata, don't know whether they would be able to solve anything. Last time I had to show them the posts in Apple Forum to prove that Random Sleep is a problem that happens to Macbook.
PS: My Macbook is with aluminium body bought in January 2009. Out of warranty. My optical drive conked off long ago (after about 15 months or so after I bought the Macbook) and I live with an external drive.

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, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in 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, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

11" MacBook Air keeps disconnecting, losing IP address from WiFi

I just bought a brand new MacBook Air last week, installed all the updates on it from my home wireless network. I then try to use it on another wireless network, and sometimes it will connect, but then it always drops the connection and won't reconnect. Sometimes resetting the router helps for a little while, but then the same thing happens. I've hooked Windows XP laptops and an iPad up to this wireless network and they do not drop their connection like this. The Air is fully updated per Software Update, has the firewall turned on, and has a bluetooth mouse in use. I set IPv6 to off in the Network preferences. The wireless device is a Linksys 610N, but its set to 2.4GHz since the iPad can't do Wireless N.
What can I try to resolve this? Most settings on the router are set to their defaults or auto, so not sure if its a specific setting the Air doesn't like or what.

Just for information of the thread, I have a new mid-2011 MBAir (4.2) with Lion which also experienced this problem straight out of the box. As described here, I have the same symptoms of appearing to be connectedd but not being able to send/receive. The only way I can resolve this is to disconnect and reconnect to the access point. Sometimes (like now) that will be ok for 30 minutes or more. Other times, it will drop out straight away again.
As I've posted in one of the other threads, the thing that annoys me about this is that there are so many forum threads dedicated to this all over the internet (for many years), but there appears no action from Apple on it - preferring to ignore it's customers problems. While I've been a Apple user for a few years, this is my first Mac purchase and it has left a bitter taste in my mouth to say the least. I've been using a MBPro for a couple of years and never had any such problem (in the same network).
Also for information of some of the other posters - I experience this on a 'G' access point, so the issue is not isolated to N/G switching. Additionally, 'N' WiFi in itself does not necessarily have shorter range through walls - 'N' operates on two frequency bands: 2.4Ghz and 5Ghz, while 'G' operates on the 2.4Ghz only. While certainly the 5Ghz band should get poorer penetration through walls and other obstacles, the advanced technology used in 'N' WiFi should more than be able to make up for that - it uses very sophisticated muti-path signal recombining and other tricks which should make it effectively more sensitive and able to sustain much higher data rates despite significant signal attenuation. Depending on the particular obstacles and range you're talking about though, each case can be different.
I've done some network captures on my problematic MBAir, and at other points in my network to see if I can identify the problem. Once I get the phantom dropout happening I notice that my Air's WiFi can still receive network traffic normally, as it sees all transmissions from other network devices around it. Also, it thinks it is still connected to the network (as it should - the network manager shows an active connection) and it tries to send packets onto the network when you make particular requests. It appears to me that these packets never actually make it out into the network, and it just keeps re-trying until it eventually times-out.
While I accept other causes are possible, this leads me to believe that the problem is with the Broadcom wireless driver. As for how the same problem can be faced by many different generations of Mac - I would hazard a guess that it is likely that, always having used Broadcom WiFi chips, that there are large parts of shared code between the driver for various models, allowing for problems to be inherited down generations. Identifying the specific issue in the driver leaves many and complex possibilites, so I won't speculate further here, but it seems like a good place to start.
Apple? Where are you on this?

Disconnects from internet when it goes to sleep

I have Mountain Lion on an iMac I purchased in 2010. Once I installed Mountain Lion, it started disconnecting from the internet when it goes to sleep. Does anybody know how to repair?

Oh yeah I forgot to say I use an ETHERNET connection.

New Macbook Air keeps restarting from Sleep.

Hi all,
Hope you can help.
In the last few days my laptop has crashed from sleep showing the message: "your mac has restarted because of a problem".
I am concerned that this is something to do with the build.
The error report seems to refer to the Kernel Trap panic. Can someone please help decipher the following error message before I concede and take it to Apple:
Anonymous UUID:       6D20AAEC-FAD1-3D98-CD2E-19A98CEB81CD
Fri Mar 28 23:26:39 2014
panic(cpu 0 caller 0xffffff80144dbe2e): Kernel trap at 0xffffff7f95ff7b91, type 0=divide error, registers:
CR0: 0x000000008001003b, CR2: 0x0000000109df1000, CR3: 0x0000000016aea000, CR4: 0x00000000001606e0
RAX: 0x000062e080000000, RBX: 0xffffff80e6101000, RCX: 0x0000000000000000, RDX: 0x0000000000000000
RSP: 0xffffff812e9639c0, RBP: 0xffffff812e9639e0, RSI: 0x00000000000afc80, RDI: 0xffffff8026f5bed8
R8: 0xffffff8014ad2b30, R9: 0x00000000002932e0, R10: 0xffffff812e963a90, R11: 0x0000000000000000
R12: 0xffffff80e6103038, R13: 0xffffff8026f5bed8, R14: 0xffffff7f9602c410, R15: 0xffffff80276cda00
RFL: 0x0000000000010246, RIP: 0xffffff7f95ff7b91, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000109df1000, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff812e963650 : 0xffffff8014422fa9
0xffffff812e9636d0 : 0xffffff80144dbe2e
0xffffff812e9638a0 : 0xffffff80144f3326
0xffffff812e9638c0 : 0xffffff7f95ff7b91
0xffffff812e9639e0 : 0xffffff7f95ff7071
0xffffff812e963a20 : 0xffffff7f95ff5f46
0xffffff812e963c90 : 0xffffff7f95fdbcac
0xffffff812e963d80 : 0xffffff7f95fe49ac
0xffffff812e963dd0 : 0xffffff7f95fe4ed0
0xffffff812e963e20 : 0xffffff7f952d2484
0xffffff812e963e60 : 0xffffff7f952d183e
0xffffff812e963e90 : 0xffffff7f952cdb4a
0xffffff812e963ef0 : 0xffffff80148ae020
0xffffff812e963f30 : 0xffffff80148acac2
0xffffff812e963f80 : 0xffffff80148acb97
0xffffff812e963fb0 : 0xffffff80144d6ff7
      Kernel Extensions in backtrace:
         com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f952c3000->0xffffff7f952fafff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f94abb000
         com.apple.driver.AppleIntelFramebufferAzul(8.2.4)[9DFF991C-E8DD-37EB-A1D2-9325D 260E880]@0xffffff7f95fd5000->0xffffff7f96030fff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f94abb000
            dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f95257000
            dependency: com.apple.iokit.IOAcceleratorFamily2(98.14)[30D694F4-CF00-3CC3-9732-C6DEB6986B5 7]@0xffffff7f95ee6000
            dependency: com.apple.iokit.IOReportFamily(23)[D203F7D3-47CA-382B-B401-8535CD4CBC49]@0xffff ff7f95246000
            dependency: com.apple.AppleGraphicsDeviceControl(3.4.35)[E4C033B8-08F5-34D3-8720-C105D48F0B C4]@0xffffff7f95fcf000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f952c3000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
13C64
Kernel version:
Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64
Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953
Kernel slide:     0x0000000014200000
Kernel text base: 0xffffff8014400000
System model name: MacBookAir6,1 (Mac-35C1E88140C3E6CF)
System uptime in nanoseconds: 40984117970185
last loaded kext at 40956412315908: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f96489000, size 49152)
last unloaded kext at 39965220030178: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f9644b000, size 32768)
loaded kexts:
com.apple.driver.AppleIntelMCEReporter          104
com.apple.filesystems.msdosfs          1.9
com.apple.iokit.SCSITaskUserClient          3.6.6
com.apple.driver.AppleUSBCDC          4.2.1b5
com.apple.driver.AppleMikeyHIDDriver          124
com.apple.filesystems.autofs          3.0
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleUpstreamUserClient          3.5.13
com.apple.iokit.IOBluetoothSerialManager          4.2.3f10
com.apple.driver.AppleHDA          2.6.0f1
com.apple.driver.X86PlatformShim          1.0.0
com.apple.driver.AGPM          100.14.15
com.apple.driver.ApplePlatformEnabler          2.0.9d1
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.3f10
com.apple.driver.AppleLPC          1.7.0
com.apple.driver.AppleSMCLMU          2.0.4d1
com.apple.driver.AppleCameraInterface          4.26.0
com.apple.driver.AppleBacklight          170.3.5
com.apple.driver.AppleMCCSControl          1.1.12
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleHWAccess          1
com.apple.driver.AppleIntelHD5000Graphics          8.2.4
com.apple.driver.AppleIntelFramebufferAzul          8.2.4
com.apple.driver.AppleTopCaseHIDEventDriver          10.21
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          35
com.apple.driver.AppleUSBHub          666.4.0
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.5.1
com.apple.driver.AppleAHCIPort          3.0.0
com.apple.driver.AirPort.Brcm4360          831.21.63
com.apple.driver.AppleUSBXHCI          670.4.0
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleACPIButtons          2.0
com.apple.driver.AppleRTC          2.0
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleSMBIOS          2.1
com.apple.driver.AppleACPIEC          2.0
com.apple.driver.AppleAPIC          1.7
com.apple.nke.applicationfirewall          153
com.apple.security.quarantine          3
com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.6
com.apple.iokit.IOUSBMassStorageClass          3.6.0
com.apple.iokit.IOUSBHIDDriver          660.4.0
com.apple.kext.triggers          1.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
com.apple.iokit.IOSerialFamily          10.0.7
com.apple.driver.DspFuncLib          2.6.0f1
com.apple.vecLib.kext          1.0.0
com.apple.iokit.IOAudioFamily          1.9.5fc2
com.apple.kext.OSvKernDSPLib          1.14
com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.3f10
com.apple.driver.X86PlatformPlugin          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.7.0d10
com.apple.driver.AppleHDAController          2.6.0f1
com.apple.iokit.IOHDAFamily          2.6.0f1
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.driver.AppleSMBusController          1.0.11d1
com.apple.iokit.IOBluetoothFamily          4.2.3f10
com.apple.driver.AppleSMC          3.1.8
com.apple.iokit.IOSurface          91
com.apple.iokit.IONDRVSupport          2.4.1
com.apple.AppleGraphicsDeviceControl          3.4.35
com.apple.iokit.IOAcceleratorFamily2          98.14
com.apple.iokit.IOGraphicsFamily          2.4.1
com.apple.driver.AppleUSBMergeNub          650.4.0
com.apple.driver.AppleUSBComposite          656.4.1
com.apple.driver.AppleHIDKeyboard          170.15
com.apple.driver.AppleHSSPIHIDDriver          24
com.apple.driver.AppleMultitouchDriver          245.13
com.apple.iokit.IOUSBUserClient          660.4.2
com.apple.iokit.IOAHCIFamily          2.6.5
com.apple.iokit.IO80211Family          630.35
com.apple.driver.mDNSOffloadUserClient          1.0.1b5
com.apple.iokit.IONetworkingFamily          3.2
com.apple.driver.AppleHSSPISupport          24
com.apple.driver.AppleIntelLpssSpiController          2.0.34
com.apple.driver.AppleIntelLpssDmac          2.0.34
com.apple.iokit.IOUSBFamily          675.4.0
com.apple.driver.AppleIntelLpssGspi          2.0.34
com.apple.driver.AppleEFINVRAM          2.0
com.apple.driver.AppleEFIRuntime          2.0
com.apple.iokit.IOHIDFamily          2.0.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          278.11
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.AppleKeyStore          2
com.apple.driver.DiskImages          371.1
com.apple.iokit.IOStorageFamily          1.9
com.apple.iokit.IOReportFamily          23
com.apple.driver.AppleFDEKeyStore          28.30
com.apple.driver.AppleACPIPlatform          2.0
com.apple.iokit.IOPCIFamily          2.9
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
com.apple.kec.pthread          1
Model: MacBookAir6,1, BootROM MBA61.0099.B07, 2 processors, Intel Core i7, 1.7 GHz, 8 GB, SMC 2.12f135
Graphics: Intel HD Graphics 5000, Intel HD Graphics 5000, Built-In, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E384A544D4C41522D4E544D
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E384A544D4C41522D4E544D
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x117), Broadcom BCM43xx 1.0 (6.30.223.154.63)
Bluetooth: Version 4.2.3f10 13477, 3 services, 15 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SD0256F, 251 GB
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus: MacBook Air, Apple Inc., 23.6

Hello robsone88,
It sounds like you are getting this Kernel Panic when your computer goes to sleep. I recommend startign by performing a Disk Verification, and repair with the following article:
Disk Utility 12.x: Repair a disk
http://support.apple.com/kb/PH5836
Print this help page so you can refer to it later. (You don’t have access to Disk Utility Help when you restart up your computer in the next step.)In the Disk Utility Help window, choose Print from the Action pop-up menu (looks like a gear).
Choose Apple menu > Restart. Hold down the Command (⌘) and R keys as your computer restarts.When you see a white screen with an Apple logo in the middle, you can release the keys.
Click Disk Utility, and then click Continue.
In the list at the left, select the item you want to repair. (Be sure to select an item that’s indented to the right in the list, not an item at the far left.)
Click First Aid.
If Disk Utility tells you the disk is about to fail, back it up and replace it. You can’t repair it.
Click Repair Disk.If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. Otherwise, you may need to do one of the following steps.
If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. Check each file in the list of affected files. If you can replace a file or recreate it, delete it. If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted. (Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.)
If Disk Utility can’t repair your disk or it reports “The underlying task reported failure,” try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall Mac OS X, and then restore your backed-up data.If you continue to have problems with your disk, it may be physically damaged and need to be replaced.
If the issue persists, I would next take a look at the following article to help you troubleshoot kernel panics, and unexpected restarts named:
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem."
http://support.apple.com/kb/TS4636
Thank you for using Apple Support Communities.
Regards,
Sterling

My new Macbook Air keeps freezing from time to time.

I have a 2 month old 256GB Macbook Air. I still have 140GB free. Yet, my screen freezes from time to time. I don't know what the problem is. Is it with the software or hardware? How do I correct it?

I'm assuming you are running Mavericks. Older versions of OS X have a slightly different interface.
Open Activity Monitor in Applications/Utilities.
Select Memory tab.
Monitor your memory pressure (bottom middle window) when you are having problems.
Green is good
Amber or yellow means that memory resources are getting low.
Red means you’re almost out of memory or it’s completely full.
See this link for more info: http://www.switchingtomac.com/tutorials/osx/understanding-memory-pressure-in-os- x-mavericks/
If your memory is all green then check CPU.
Sort on the CPU tab at the top. This will show you what app is using the most CPU.
You might find you need to quit other apps while watching videos.

Why does macbook pro keep disconnecting from wifi every 10-20 minutes?

It keeps disconnecting and I have to restart macbook pro so it works again.

It keeps disconnecting and I have to restart macbook pro so it works again.

MacBook Air will not power on after going to sleep

I have a 13" MacBook Air (2012) that has been giving me some issues on and off lately. The past month or two, it has had a few instances where it would take a lot of time and work to get it to "wake up" after the lid was opened. A few times I had to hold the power and reboot it as it was non-repsonsive and would not display anything on screen (black screen). Then a few weeks ago it was un-responsive for a minute upon opening the lid but I eventually got it to come alive but it was very slow to get going as there were quite a few programs running and it auto-rebooted itself. Once I logged in, it did it again but this time it got hung up on the apple logo on boot and was in a cycle of trying to reboot itself but failed at the apple logo. I eventually got it into recovery mode and went into Disk Utility. It found some problems with the hard drive and fixed them. After that, it booted up fine and hasn't given me any problems UNTIL... yesterday, it won't even attempt to power on at all. It was working fine yesterday morning and I was only using Safari (no other programs running) then I closed the lid and left for a few hours with it just sitting there. I didn't take it with me, drop it or anything like that (In fact, it's never been dropped). I just left it right there where I was using it and closed the lid. I came back in the afternoon and opened it up and waited for it to come on but nothing happened. It wasn't even powered on as I put my ear up to it and listened for noise. I've tried holding the power button, I've tried Option+Power, I've reset the SMC, but nothing happens. I don't know what else to try. I believe this model may have a recall on the solid-state-drive but I'm not sure that is it as it should at least power on and display a folder with a "?" mark if the hard drive was bad. I'm wanting to attempt to resolve this before I make a 1.5 hour trip to the Apple store so any help and suggestions are welcome.
Things you should know:
It successfully resets the SMC as the orange light flashes green for a few seconds before turning orange again.
I've tried the charger with 2 different plugs with and without the extending cord. I've also tried booting on battery power only.
The power button is not broke as it recognizes it while doing the SMC reset.
Thanks so much for all your help, Silas

dwb wrote:
does the little light on the mag safe dongle turn green to indicate it is charging?
Are you sure you mean green? Mine is orange when charging and green when fully charged - always been like this with the 3 macbooks I have owned.

HT4628 After installing the new OS from apple (10.8.2) my macbook pro keeps disconnecting from the internet. I am connecting with an Airport Extreme and while it shows I am connected, every 20-45 seconds its searching for a wireless connection. Any sugg

I guess I posted my question as a title but that is my issue. My airport is connected via wireless yet it keeps searching for a wireless connection, hence I am experiencing bad latency and disconnection issues. Anyone know a solution?

I have the same problem. And in my case it happens when i transfer "large" files over the WiFi. When i send an MP3 filer over Skype i loose connection. When i transfer updates between my iPhone 5 / iPad 3 and iMac with Mountain Lion i loose connection. When i have a video conference i loose connection. You get the idea.
There is usually like 30 people using their own router on the 2.4 GHz band near by. None on the 5 GHz band which i use. But when my WiFi freezes on ML i can only see my own router. And i am also connected to it. But all my neighbors WiFi routers are now invisble to me. My network stalled.
What i do is that i disconnect my WiFi and then reconnect it again. Thank fixes it. But all my transfers and what not has been dropped. And i have to start all over - and the WiFi will stall again.
While my WiFi is frozen on the iMac with ML i have no problem using the same router on the same 5 GHz band with my iPhone 5 or iPad 3.
Downgrading the AirPort Extreme to 7.6.1 from 7.6.3 helped a bit. Now i only loose connection a few times each day.
It is a software error in ML i am sure of. A driver maybe. But i am suspecting that it is either a speed-sync error or an energy saving error. Like the network card turns of in the middle of a file transfer to save enrgy - maybe.
When i stream movies from my iMac to my Apple TV or 3 there is no problem at all. It is so odd.

Macbook air keeps disconnecting from internet when going to sleep mode

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