Macbok air 2012 wifi is too slow

i need help

If you are using any bluetooth device whether its with your phone or laptop, it may be causing wifi interference which probably is causing your wifi to be slow. I suggest shutting off all bluetooth devices. Also, if your router is not up to date as in doesnt support wireless n or ac, you probably should consider a new router.

Similar Messages

  • Macbook Air 2012 Wifi getting slower

    I have had this problem for some time. My Macbook Air (which was running perfectly for the first year or so) is getting increasingly slower on Wifi. I also have the problem that it has to signal reception in one of my rooms, with my other (even older) MacBook Pro having a full signal standing right next to it.
    Change of  Wifi Channels did not help, changes between 2.4 and 5GHz Band  did nothing. This happens with one single application (Safari) running, regardless of DNS settings. I am running out of ideas.
    Here is the system dump:
    Problem description:
    Internet is super slow and Wifi reception very weak compared to other Mac I own
    EtreCheck version: 2.1.8 (121)
    Report generated April 8, 2015 at 12:05:01 EDT
    Download EtreCheck from http://etresoft.com/etrecheck
    Click the [Click for support] links for help with non-Apple products.
    Click the [Click for details] links for more information about that line.
    Hardware Information: ℹ️
        MacBook Air (13-inch, Mid 2012) (Technical Specifications)
        MacBook Air - model: MacBookAir5,2
        1 1.8 GHz Intel Core i5 CPU: 2-core
        8 GB RAM Not upgradeable
            BANK 0/DIMM0
                4 GB DDR3 1600 MHz ok
            BANK 1/DIMM0
                4 GB DDR3 1600 MHz ok
        Bluetooth: Good - Handoff/Airdrop2 supported
        Wireless:  en0: 802.11 a/b/g/n
        Battery Health: Check Battery - Cycle count 183
    Video Information: ℹ️
        Intel HD Graphics 4000
            Color LCD 1440 x 900
            SyncMaster 1920 x 1080 @ 60 Hz
    System Software: ℹ️
        OS X 10.10.2 (14C1514) - Time since boot: 8 days 2:46:26
    Disk Information: ℹ️
        APPLE SSD TS128E disk0 : (121.33 GB)
            EFI (disk0s1) <not mounted> : 210 MB
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
            Macintosh HD (disk1) / : 120.14 GB (23.43 GB free)
                Encrypted AES-XTS Unlocked
                Core Storage: disk0s2 120.47 GB Online
    USB Information: ℹ️
        Apple Inc. FaceTime HD Camera (Built-in)
        Apple Internal Memory Card Reader
        Apple Inc. Apple Internal Keyboard / Trackpad
        Apple Inc. BRCM20702 Hub
            Apple Inc. Bluetooth USB Host Controller
    Thunderbolt Information: ℹ️
        Apple Inc. thunderbolt_bus
    Configuration files: ℹ️
        /etc/hosts - Count: 1
    Gatekeeper: ℹ️
        Mac App Store and identified developers
    Kernel Extensions: ℹ️
            /Applications/Parallels Desktop.app
        [not loaded]    com.parallels.kext.hidhook (9.0 24251.1052177) [Click for support]
        [not loaded]    com.parallels.kext.hypervisor (9.0 24251.1052177) [Click for support]
        [not loaded]    com.parallels.kext.netbridge (9.0 24251.1052177) [Click for support]
        [not loaded]    com.parallels.kext.usbconnect (9.0 24251.1052177) [Click for support]
        [not loaded]    com.parallels.kext.vnic (9.0 24251.1052177) [Click for support]
            /Library/Application Support/VirtualBox
        [loaded]    org.virtualbox.kext.VBoxDrv (4.3.12) [Click for support]
        [loaded]    org.virtualbox.kext.VBoxNetAdp (4.3.12) [Click for support]
        [loaded]    org.virtualbox.kext.VBoxNetFlt (4.3.12) [Click for support]
        [loaded]    org.virtualbox.kext.VBoxUSB (4.3.12) [Click for support]
            /Library/Extensions
        [loaded]    com.kaspersky.kext.klif (3.0.2a39) [Click for support]
        [loaded]    com.kaspersky.nke (1.6.2a12) [Click for support]
            /System/Library/Extensions
        [loaded]    com.avira.kext.FileAccessControl (1.0.0d1 - SDK 10.9) [Click for support]
    Launch Agents: ℹ️
        [failed]    com.adobe.AdobeCreativeCloud.plist [Click for support]
        [loaded]    com.avira.antivirus.general.agent.plist [Click for support]
        [loaded]    com.avira.antivirus.ipm.ui.plist [Click for support]
        [loaded]    com.avira.antivirus.notifications.agent.plist [Click for support]
        [loaded]    com.avira.antivirus.odscan.default.plist [Click for support]
        [loaded]    com.avira.antivirus.scheduler.agent.plist [Click for support]
        [running]    com.avira.antivirus.systray.plist [Click for support]
        [loaded]    com.avira.antivirus.telemetry.agent.plist [Click for support]
        [loaded]    com.avira.antivirus.update.default.plist [Click for support]
        [not loaded]    com.displaylink.useragent-prelogin.plist [Click for support]
        [failed]    com.google.keystone.agent.plist [Click for support]
        [failed]    com.kaspersky.kav.gui.plist [Click for support]
        [loaded]    com.oracle.java.Java-Updater.plist [Click for support]
        [loaded]    org.gpgtools.gpgmail.enable-bundles.plist [Click for support]
        [loaded]    org.gpgtools.gpgmail.patch-uuid-user.plist [Click for support]
        [loaded]    org.gpgtools.Libmacgpg.xpc.plist [Click for support]
        [loaded]    org.gpgtools.macgpg2.fix.plist [Click for support]
        [running]    org.gpgtools.macgpg2.gpg-agent.plist [Click for support]
        [loaded]    org.gpgtools.macgpg2.updater.plist [Click for support]
    Launch Daemons: ℹ️
        [loaded]    com.adobe.fpsaud.plist [Click for support]
        [loaded]    com.avira.antivirus.dbcleaner.plist [Click for support]
        [loaded]    com.avira.antivirus.ipm.loader.plist [Click for support]
        [running]    com.avira.helper.watchdox.plist [Click for support]
        [loaded]    com.google.keystone.daemon.plist [Click for support]
        [failed]    com.kaspersky.kav.plist [Click for support]
        [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
        [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]
        [loaded]    com.oracle.java.JavaUpdateHelper.plist [Click for support]
        [loaded]    com.skype.skypeinstaller.plist [Click for support]
        [failed]    com.starfield.backupservice.plist [Click for support]
        [loaded]    org.gpgtools.gpgmail.patch-uuid.plist [Click for support]
        [running]    org.jivesoftware.openfire.plist [Click for support]
        [not loaded]    org.virtualbox.startup.plist [Click for support]
    User Launch Agents: ℹ️
        [loaded]    com.citrixonline.GoToMeeting.G2MUpdate.plist [Click for support]
        [running]    com.microsoft.LaunchAgent.SyncServicesAgent.plist [Click for support]
        [loaded]    com.spotify.webhelper.plist [Click for support]
        [not loaded]    org.virtualbox.vboxwebsrv.plist [Click for support]
    User Login Items: ℹ️
        iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
        Dropbox    Application  (/Applications/Dropbox.app)
    Internet Plug-ins: ℹ️
        JavaAppletPlugin: Version: Java 8 Update 31 Check version
        o1dbrowserplugin: Version: 5.1.4.17398 [Click for support]
        Default Browser: Version: 600 - SDK 10.10
        AdobeAAMDetect: Version: AdobeAAMDetect 2.0.0.0 - SDK 10.7 [Click for support]
        FlashPlayer-10.6: Version: 17.0.0.134 - SDK 10.6 [Click for support]
        Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Click for support]
        Flash Player: Version: 17.0.0.134 - SDK 10.6 [Click for support]
        QuickTime Plugin: Version: 7.7.3
        googletalkbrowserplugin: Version: 5.1.4.17398 [Click for support]
        SharePointBrowserPlugin: Version: 14.4.8 - SDK 10.6 [Click for support]
        npgtpo3dautoplugin: Version: 0.1.44.29 - SDK 10.5 [Click for support]
        MeetingJoinPlugin: Version: Unknown - SDK 10.6 [Click for support]
    User internet Plug-ins: ℹ️
        WbeTools64_14: Version: 1.0.22.49 © 2012 - SDK 10.6 [Click for support]
        WebEx64: Version: 1.0 - SDK 10.6 [Click for support]
        CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 [Click for support]
        Google Earth Web Plug-in: Version: 7.1 [Click for support]
        fileEditTool64_15: Version: 1.0.35.65 © 2013 - SDK 10.6 [Click for support]
    Safari Extensions: ℹ️
        Ultimate Status Bar
        ClickToFlash
        Virtual Keyboard
        KasperskyURLAdvisor
    3rd Party Preference Panes: ℹ️
        Flash Player  [Click for support]
        GPGPreferences  [Click for support]
        Java  [Click for support]
    Time Machine: ℹ️
        Time Machine not configured!
    Top Processes by CPU: ℹ️
            30%    mds
             6%    WindowServer
             1%    avguard-ondemand-mgmt
             0%    ocspd
             0%    firefox
    Top Processes by Memory: ℹ️
        481 MB    Maps
        447 MB    softwareupdated
        438 MB    firefox
        352 MB    savapi
        172 MB    Safari
    Virtual Memory Information: ℹ️
        824 MB    Free RAM
        4.45 GB    Active RAM
        1.91 GB    Inactive RAM
        1.11 GB    Wired RAM
        12.78 GB    Page-ins
        17 MB    Page-outs
    Diagnostics Information: ℹ️
        Standard users cannot read /Library/Logs/DiagnosticReports.
        Run as an administrator account to see more information.

    Make a "Genius" appointment at an Apple Store, or go to another authorized service provider. You may have to leave the machine there for several days.
    Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional—ask if you need guidance.
    If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
    Keeping your confidential data secure during hardware repair
    Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.
    *An SSD doesn't need to be zeroed.

  • Wifi is too slow

    I recently bought iphone 5, 32 gb. Everything is going just fine except wifi speed. I am also using samsung galaxy s2. Wifi speed of iphone is drastically slow as compared to s2. I am not able to view trailors of movies as well as you tube. please help

    hey
    luvlabs is right - at least in my case
    I have a mac hard wired and get 10mb up and 1 mb down, as I should, so the router is fine for ethernet connected devices
    my ipad is on 4.3.3 and thats fine using speedtest.net app, 10 and 1
    my iphone is on 4.3.3 and is getting 0.24 up and 0.21 down - terrible
    my wife's iphone is on 4.3.2 and is getting 9 and 1 - so no problem with my router with wifi either. haven't upgraded her yet.
    I did what luvlabs suggested and reset my network settings, rebooted, and put the wifi settings back in again. I'm now getting 9 and 1 on my phone on 4.3.3
    so mine is fixed. I'll upgrade my wifes and see if it breaks again. anyway, fix for me is:
    >2. Reset your network settings - tap Settings > General > Reset > Reset Network Settings
    >3. After your iPhone restarts, tap Settings > WiFi > Other and re-enter your network name, security, and network password.
    using virgin media 10mb feed, and a netgear router B/G only. all tested done sunday morning at 8am ish, and used the speedtest.net app or website. Either London or Maidstone server.
    hope this helps!

  • SURFboard SBg6580 wifi is too slow

    I have a MOTOROLA SBG6580 SURFboard Wireless Cable Modem DOCSIS/EuroDOCSIS 3.0 With the up to date 6.5.0.0-GA-00-226-NOSH firewall. Comcast technicians came to the house and said everything good is going to my modem. But I still have slow wifi is there any settings I can change on my sbg 6580 to help speed things up or any other suggestions. Blast! At 50 MbpsMy speed testhttp://stage.results.speedtest.comcast.net/result/298118732.png

    alleycat167
    Please start a new topic for your problem if you wish. Two year old thread now being closed.

  • Macbook air 2012 wifi problem

    Hi,
    I have just bought a new macbook air and Im finding that the wireless keeps dropping at random times, it is not the router as I have a connection on my old 2008 Macbook, windows laptop and ipads etc.
    I have done some browsing on the net and found that alot of peope have the same problem, however, I cant seem to find a definate fix.
    I would be very grateful if anyone could help me with this problem.
    Thanks,
    P

    try this.
    http://support.apple.com/kb/TS4611

  • New wifi iPad too slow?

    How to determine if faulty?

    What makes you think it's slow? Take it to an Apple Store for evaluation.
     Cheers, Tom

  • Wifi internet too slow vpn

    i have vpn client software installed. When the client software is NOT running, my internet is "dial-up" slow. When vpn is enabled and i am connected, internet runs at normal speeds.
    i find this is usually the opposite of what happens. this happens at all locations, not just my house. i am quick to blame the vpn client. but not sure how it could be affecting me if the program is quit. thanks for the help

    thanks for the reply. im using VPN tracker 5 from equinux. I checked the processes app but nothing that would lead me to think it was looking for the vpn stuff.

  • Lenovo g505s wifi far too slow

    I was wondering if i could get some help as i'm going out of my mind with this laptop. Ever since i bought it (over a year ago) i have been struggling with wifi. The inbuilt wifi is about as useful as a wet paper bag, it will disconnect periodically and barely get above 1mb download (i have a 100mb package). I figured i would try it with a USB dongle, but even with that i barely get above 4mb, i can load sites faster on my phone than i can on my laptop. Normally I would take it back and never touch a lenovo again, unfortunatley my waranty period has expired after being unable to use the laptop for nearly a year due to family troubles. With the release of Windows 10 and updates to the wifi I thought i'd give it another chance. Installed Win10 and all new drivers, and once again 1mb with laptop wifi, 4mb with usb dongle. So can anyone please help me with this god awful wifi before i tear my hear out and throw the laptop in the bin? Thanks. Frustrated Robeus.

    No one? I'd sell the laptop but dont know who'd buy it with such a terrible internet. Would really like some help, dont want to have wasted £300.

  • Problem ssd for macbook air 2012

    I have a problem with the sd disk in MacBook Air 2012 god is much slower than other laptops the same result.
    We took it to the apple authorized service vvv.istjle.rs but they gave us a test sdd sd and said that everything was working ok. but they do not have the ability to test the speed of SD and it's made ​​by Apple to work.
    So please reply us what to do. For our sd is correct but radisporije than others of the same model?

    That's about the normal speed for your SSD.
    What size is your ssd and what model?
    Mine is TS128E = Toshiba
    If your SSD starts with a SM, the you have a Samsung SSD
    Here is mine = 128GB Toshiba

  • Why is my iPhone 5 S WiFi speed 50% slower than my MacBook Air 2012?

    Why is my iPhone 5 S WiFi speed 50% slower than my MacBook Air 2012?

    Hello jagimc,
    Thanks for using Apple Support Communities.
    For more information on this, take a look at this article:
    iOS: Troubleshooting Wi-Fi networks and connections
    http://support.apple.com/kb/ts1398
    Wi-Fi disconnects, or signal strength is less than expected
    Move closer to the Wi-Fi router (access point).
    Check for sources of potential interference.
    Remove any case, stand, or other accessories from your iOS device and see if signal strength improves.
    Reset network settings by tapping Settings > General > Reset > Reset Network Settings.
    Note: This will reset all network settings including: previously connected Wi-Fi networks and passwords, recently used Bluetooth accessories, VPN and APN settings.
    Best of luck,
    Mario

  • Wifi Problems [Macbook air 2012 Mountain Lion]

    I have a new (barely 2 weeks old) Macbook Air fresh from Shanghai.  It is running the most current OSX 10.8.2 with the newest update.  All apps are up to date.  It has 8gb ram and a core i7 processor. 
    The wifi is extremely slow (I am seeing rates from a couple kb to maybe 100kb/s).  The wifi icon in the upper bar displays full strength for my home wifi (WPA2 secured running N-band).  However, if I go more than a 10 feet from the router the signal appears to drop off dramatically (speeds become lethargic, nearly 0kb/s) although the icon still displays full strenth.  The only way I can get half-decent speeds is by physically sitting in my closet with the router.  Clearly, this is not ideal and hopefully is not the norm for a brand new system like this that is meant to be an ultraportable. 
    Another symptom I have noted is that when the macbook is connected to the network, the speed of all other wifi-connected devices also drops off - though not as dramatically.  
    The wifi connection problem appears to be not just with my home network as it is also unbearable with any wifi network I've tried EXCEPT the apple store (so of course the apple genius wasn't convinced).  
    I have tried many things to fix this including:
    bluetooth is turned off
    no other devices are connected
    reset router
    reset wifi setting on computer and turn on/off
    reseting NVRAM
    changing network (I have tried 2 home networks, starbucks, a portable hotspot, and my school's wifi)
    So far, as I mentioned before, the only way to get above 20 kb/s is to sit inside my closet.  This network works perfectly with 3+ other computers and any cell phones/printers/etc that have been hooked up to it, many of which are many rooms/walls away.  Also, even sitting next to the router, speeds are still 10x slower than other devices.
    Any help would be greatly appreciated!
    Thank you!

         O
    I had the excact same issue, I have now restored to OSX 10.8.1 rather than update to 10.8.2? downside is I cannot use iPhoto because it requires 10.8.2 to install
    Strange thing is when i updated to 10.8.2 and logged in as a guest user i had no internet problems, but as soon as I switched back to my account login the wifi issues came back?
    I even spent 2 hours on the phone to my internet service provider thinking it was my router giving up.
    It was only through luck that i picked up on the fact that it didnt cause issues before i updated, but only after the update did the issue raise its head.
    Im a loyal apple user,  I also sell apple products through a reseller bar inside the store I work, but im starting to loose faith.
    Lets hope this is a bigger issue than just a handful of users, that way apple may get a fix out for this
    ( Fingers crossed)
    iMac late 2009 24" iPhone 4s 16GBIpad 16GB 3rd GenApple Tv 3rd GenMacbook Air 11" mid 2012
    Wayne

  • WIFI too slow after IOS 6 installed. SAFARI is loading very slow for burmese language website. Please help.....

    WIFI too slow after IOS 6 installed. SAFARI is loading very slow for burmese language websites. Not only that....many other websites too.....Please help.....Don't expect that ENglish is only language we expect to view on IPAD......
    Most websites are responding very slow with safari & many other broswers opera.........Too annoying IOS 6...Give me IOS 5 back...Tell me how.....
    I am too angry with IOS 6.......My IPAD 2 & IPHONE 4S all suck after installing IOS 6..........
    I can't believe "$600 billions " company released without testing on every devices with different wifi routers, applications on their store.........   
    Give me some ways to downgrade to IOS 5.1.1......

    iOS 6 Wifi Problems/Fixes
    Fix For iOS 6 WiFi Problems?
    http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
    Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
    http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
    How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
    http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
    iOS 6 iPad 3 wi-fi "connection fix" for netgear router
    http://www.youtube.com/watch?v=XsWS4ha-dn0
    Apple's iOS 6 Wi-Fi problems
    http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
    ~~~~~~~~~~~~~~~~~~~~~~~
    You may think you are connected to the internet, but maybe not. Click on Safari and see if it connects.
    Look at iOS Troubleshooting Wi-Fi networks and connections  http://support.apple.com/kb/TS1398
    iPad: Issues connecting to Wi-Fi networks  http://support.apple.com/kb/ts3304
    WiFi Connecting/Troubleshooting
    http://www.apple.com/support/ipad/wifi/
    iOS: Recommended settings for Wi-Fi routers and access points  http://support.apple.com/kb/HT4199
    Additional things to try.
    Try this first. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
    Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
    Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
    Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
    How to Quickly Fix iPad 3 Wi-Fi Reception Problems
    http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
    If none of the above suggestions work, look at this link.
    iPad Wi-Fi Problems: Comprehensive List of Fixes
    http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
    Fix iPad Wifi Connection and Signal Issues  http://www.youtube.com/watch?v=uwWtIG5jUxE
    Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
    Unable to Connect After iOS Update - saw this solution on another post.
    https://discussions.apple.com/thread/4010130
    Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
    ~~~~~~~~~~~~~~~
    If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
     Cheers, Tom

  • My MacBook Pro (Retina, Mid 2012) is too slow after installing Yosemite version 10.10.1. All programs take for ever to load especially Safari and even chrome. I regret upgrading to yosemite, it was all fine with Maverick. Any suggestions ? ThankYou

    My MacBook Pro (Retina, Mid 2012) is too slow after installing Yosemite version 10.10.1. All programs take for ever to load especially Safari and even chrome. I regret upgrading to yosemite, it was all fine with Maverick. Any suggestions ? ThankYou

    1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
    Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
    2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
    There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
    3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
    You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
    In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
    You may not be able to understand the script yourself. But variations of the script have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message.
    Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
    4. Here's a summary of what you need to do, if you choose to proceed:
    ☞ Copy a line of text in this window to the Clipboard.
    ☞ Paste into the window of another application.
    ☞ Wait for the test to run. It usually takes a few minutes.
    ☞ Paste the results, which will have been copied automatically, back into a reply on this page.
    The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
    5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
    6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
    7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
    Triple-click anywhere in the line of text below on this page to select it:
    PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts SerialATA 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports ' com.clark.\* \*dropbox \*genieo\* \*GoogleDr\* \*k.AutoCAD\* \*k.Maya\* vidinst\* ' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 "` route -n get default|awk '/e:/{print $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB ' com.adobe.AAM.Updater-1.0 com.adobe.AAM.Updater-1.0 com.adobe.AdobeCreativeCloud com.adobe.CS4ServiceManager com.adobe.CS5ServiceManager com.adobe.fpsaud com.adobe.SwitchBoard com.adobe.SwitchBoard com.apple.aelwriter com.apple.AirPortBaseStationAgent com.apple.FolderActions.enabled com.apple.installer.osmessagetracing com.apple.mrt.uiagent com.apple.ReportCrash.Self com.apple.rpmuxd com.apple.SafariNotificationAgent com.apple.usbmuxd com.citrixonline.GoToMeeting.G2MUpdate com.google.keystone.agent com.google.keystone.daemon com.microsoft.office.licensing.helper com.oracle.java.Helper-Tool com.oracle.java.JavaUpdateHelper com.oracle.java.JavaUpdateHelper org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.startx ' ' 879294308 4071182229 461455494 3627668074 1083382502 1274181950 1855907737 2758863019 1848501757 464843899 3694147963 1233118628 2456546649 2806998573 2778718105 2636415542 842973933 2051385900 3301885676 891055588 998894468 695903914 1443423563 4136085286 523110921 2883943871 3873345487 ' 51 5120 files );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^\([0-9]+\) /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=('\n%s: %s\n' '\n%s\n\n%s\n' '\nRAM details\n%s\n' %s\ %s '%s\n-\t%s\n' );S0() { echo ' { q=$NF+0;$NF="";u=$(NF-1);$(NF-1)="";gsub(/^ +| +$/,"");if(q>='${p[$1]}') printf("%s (UID %s) is using %s '${p[$2]}'",$0,u,q);} ';};s=(' s/[0-9A-Za-z._]+@[0-9A-Za-z.]+\.[0-9A-Za-z]{2,4}/EMAIL/g;/faceb/s/(at\.)[^.]+/\1NAME/g;/\/Shared/!s/(\/Users\/)[^ /]+/\1USER/g;s/[-0-9A-Fa-f]{22,}/UUID/g;' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: (E[^m]|[^EO])|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { if(n<10) print "com.apple.";} ' ' { sub(/ :/,"");print|"tail -n'${p[12]}'";} ' ' NR==2&&$4<='${p[13]}' { print $4;} ' ' END { $2/=256;if($2>='${p[15]}') print int($2) } ' ' NR!=13{next};{sub(/[+-]$/,"",$NF)};'"`S0 21 22`" 'NR!=2{next}'"`S0 37 17`" ' NR!=5||$8!~/[RW]/{next};{ $(NF-1)=$1;$NF=int($NF/10000000);for(i=1;i<=3;i++){$i="";$(NF-1-i)="";};};'"`S0 19 20`" 's:^:/:p' '/\.kext\/(Contents\/)?Info\.plist$/p' 's/^.{52}(.+) <.+/\1/p' ' /Launch[AD].+\.plist$/ { n++;print;} END { if(n<200) print "/System/";} ' '/\.xpc\/(Contents\/)?Info\.plist$/p' ' NR>1&&!/0x|\.[0-9]+$|com\.apple\.launchctl\.(Aqua|Background|System)$/ { print $3;} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:[^:]+//p ' '/^root$/p' ' !/\/Contents\/.+\/Contents|Applic|Autom|Frameworks/&&/Lib.+\/Info.plist$/ { n++;print;} END { if(n<1100) print "/System/";} ' '/^\/usr\/lib\/.+dylib$/p' ' /Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".(/private)?","");n++;print;} END { split("'"${p[41]}"'",b);split("'"${p[42]}"'",c);for(i in b) print b[i]".plist\t"c[i];if(n<500) print "Launch";} ' ' /\/(Contents\/.+\/Contents|Frameworks)\/|\.wdgt\/.+\.([bw]|plu)/d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| |\n","\\|\\|kMDItem'${p[35]}'=");sub("^...."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[43]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/{next};/%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, "int($6/1024)" out";} END { if(a) print "CPU: "a;if(b) print "I/O: "b;if(c) print "Net: "c" (KiB/s)";if(d) print "Net errors: "d" packets/s";} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' $1~"lR"&&$2<='${p[25]}';$1~"li"&&$3!~"wpa2";' ' BEGIN { FS=":";p="uniq -c|sed -E '"'s/ +\\([0-9]+\\)\\(.+\\)/\\\2 x\\\1/;s/x1$//'"'";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1|p;b=b$1;} END { close(p);if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 27 14`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n   "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n   [N/A]";"cksum "F|getline C;split(C, A);C="checksum "A[1];"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text(, with v.+)?$|(Bo|PO).+ sh.+ text ex|XM)/) F=F" ("T", "C")";else F=F" ("C")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n   ...and %s more line(s)\n",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / / { print "'"${p[28]}"'";exit;};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/\(L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9|"sort|uniq";} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */   /;' ' s/^.+ |\(.+\)$//g;p ' '/\.(appex|pluginkit)\/Contents\/Info\.plist$/p' ' /2/{print "WARN"};/4/{print "CRITICAL"};' ' /EVHF|MACR|^s/d;s/^.+: //p;' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps crontab iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl smcDiagnose sysctl\ -n defaults\ read stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' pluginkit scutil dtrace profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${c1[14]}"' :CFBundleDisplayName" {} \;|sort|uniq' '~ $TMPDIR.. \( -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 \)' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' :${p[35]}\" :Label\" '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$(RefProc): \$Message' -k Sender Req 'fsev|kern|launchd' -k RefProc Rne 'Aq|WebK' -k Message Rne 'Goog|ksadm|probe|Roame|SMC:|smcD|sserti|suhel| VALI|ver-r|xpma' -k Message Req 'abn|bad |Beac|caug|corru|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|NVDA\(|pagin|proc: t|Roamed|rror|SL|TCON|Throttli|tim(ed? ?|ing )o|WARN' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true \) -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '/S*/*/Ca*/*xpc* >&- ||echo No' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,Ex}* {/,}L*/{A*d,Ca*/*/Ex,Co{mpon,reM},Ex,In{p,ter},iTu*/*P,Keyb,Mail/B,Pr*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -path \\*s/Resources -prune -o -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" -m 'L*/{Con*/*/Data/L*/,}Pref* -type f -size 0c -name *.plist.???????|wc -l' kern.memorystatus_vm_pressure_level '3>&1 >&- 2>&3' " -F '\$Time \$Message' -k Sender kernel -k Message CSeq 'n Cause: -' " );N1=${#c2[@]};for j in {0..9};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents XPC\ cache Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching SATA Descriptors App\ extensions Lockfiles Memory\ pressure SMC Shutdowns );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};A'$((7+i))'() { v=` eval sudo "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};';done;A9(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "${s[63]}"<<<"$v"`&&C1 1 $1;};for i in 1 2 7 8;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 50;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;B1&&D73 19 53 67 55;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 54 12 56;D23 5 14 12 14;D22 6 36 13 15;D22 20 52 66 54;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D82 35 49 61 51;D82 11 17 17 20;for i in 0 1;do D82 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A8 18 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;B3 4 0 65;A3 14 6 32 0;B4 0 16 11;A1 26 50 64;B7 16;C3 52;D13 24 24 32 31;D13 25 37 32 33;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D73 21 0 32 19;D73 10 42 32 40;D82 29 35 46 39;};D23 14 1 62 42;D12 34 43 53 44;D12 22 20 32 25;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 21 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D83 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 10 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 21 48 49 49;B3 4 22 57;A1 21 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D12 4 51 32 53;D23 22 9 37 7;A9;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
    Copy the selected text to the Clipboard by pressing the key combination command-C.
    8. Launch the built-in Terminal 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 Terminal in the icon grid.
    Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
    9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
    exec bash
    and press return. Then paste the script again.
    10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return  three times at the password prompt. Again, the script will still run.
    If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
    11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
    [Process completed]
    to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report what happened. No harm will be done.
    12. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
    At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
    If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
    13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
    14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
    Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

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    I have an ipad3(wifi +cellular). Now i want to upgrade my iOS5.1 to ios 7. But download speed in our country is too slow(100kbps). It can be disconnected anytime. Is there any problem if net connection get disconnected while upgrading ios? Please ans me.

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