Weird things happened and now No Airport Card Installed.

Last night, I was playing with my iPhone 4 hotspot with my macbook unibody. Out of the blue, my macbook freeze while connecting with wireless hotspot. So what else can I do, I hard press the button and restart my macbook. Upon restart, it show NO AIRPORT CARD INSTALLED. So now I go and check my network preference, and I did not see airport listed on the left pane, I click + to add it, but no airport option. Weird... I regret with that iphone hotspot which now created problem with my macbook airport.
Where did it gone?
Is that hard press to shut down macbook disturbed every airport setting?
Is there anyway to get this setting back without fresh install or even reinstall OS? I have tried everything like PRAM SMU thinggy, but none work. Now I checked the preferences folder i dont see airport plist anymore.
This is so weird.. HELP!

Pull down the Apple menu, select "About This Mac", then click on "More Info". In the column on the left look for "Network" and within that, "AirPort". Click on that. If you see a lot of details about your AirPort card, then there's nothing wrong with your AirPort hardware.
It might help to reset the connection settings on your Mac using these steps one at a time until the problem is resolved, recognizing that, depending on your problem, not all of these steps will make sense:
1) Use the AirPort menu bar item to turn AirPort off, then on again.
2) Try to select your Wi-Fi network from the AirPort menu.
3) In the Network panel of System Preferences delete the AirPort item from the left column, then add it back.
4) In the same panel as (3), define a new location and see if you can make that work.
5) In the same panel, select the AirPort connection item, click the "Advanced" button, select the "TCP/IP" tab, then click "Renew DHCP Lease". Note that the fix this step implements may be temporary.
6) In the folder /Library/Preferences ( _not_ <yourhomefolder>/Library/Preferences), move the folder SystemConfiguration onto the Desktop, then restart your computer. See if you can now make your AirPort connection work.
These steps may not help, but they'll only take a couple of minutes to try. Before you try these, if you have any special network settings on your Mac for things like DSL credentials, note all your network settings, because the latter steps will destroy them. If you got all the way to the last step, if things don't work any worse than before, you can trash the saved SystemConfiguration folder.

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System extension cannot be used, now no AirPort Card Installed?!?!?!?!

I have had my MBP for some time now and the other day it went into a kernel panic and after having to go through all the processes to recover it including restoring from the time capsule so that it doesn't take over 10 mins to start up an error message came up saying;
"*System extension cannot be used*"
"the system extension '/System/Library/Extensions/IO80211Family.kext/Contents/PlugIns/AppleAirPortBrc m4311.kext' was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update"
Now i cant use my airport card at all, it says that there is no airport card installed and I have spent hours on the phone to apple, done the option + command + r + p thing and had to restore my whole system off my TC with the backup disks and all.
Plz plz plz plz help, i just want it back the way it was, this is so annoying
Message was edited by: TBlank

I had the same problem. It happened to me after I updated to 10.5.6. I didn't notice the problem until I rebooted a few days later. I reinstalled the system from disk and then realized that even though it took almost an hour it didn't really install anything. So I deleted the whole /System/Library/Extensions/IO80211Family.kext and reinstalled the system again. This time it worked

Can't boot from install disk, and says no airport card installed, HELP!

I bought a new Macbook Pro a few months ago, which recently had to go in for repair to have the screen changed. It came back with the new screen fitted but they had done a terrible job at aligning the lid, so it went back again. Came back and all looked good, until i booted up and realized that where my wifi icon is at the top of the screen, it wasn't connected. When clicking it to bring down the drop down menu of available wifi spots, all it said was "No Airport Card Installed"....Thinking a repair of disk permissions might be worth trying, I tried to boot from my OSX install disk holding down C, however when holding down C all it does is go on a constant loop of restarting, not even reaching the Apple logo. If I don't hold down C then it simply boots to the desktop, so i'm unable to access disk utility correctly to run a repair.
Being pretty fedup with the whole situation, the laptop has now gone back for a 3rd time, as it never had these two issues before. I was just wondering if anyone had any idea what might have caused this? And how a status of no airport card installed and a drive that wont boot a disk normally can be related?
I'll be getting it back on Tuesday, but i just wanted to know what the heck they might have done to have screwed things up.
Thanks
Phil
Message was edited by: Philip Dexter

Hi Phil,
I can't say for sure, but it sounds to me like they didn't reconnect the WiFi hardware when replacing the screen. To my knowledge, the Airport "hardware" (including the antenna) is located inside the screen hinge. When the screen was replaced (and the hinge not properly aligned) perhaps someone improperly connected the Airport hardware, or forgot to connect it entirely.
The reason the WiFi hardware is located in the hinge is because that is the only plastic area of the entire notebook. Radio signals do not travel well through aluminum, so some area of the computer has to be plastic to allow that signal to get through. The hinge is the only area where that's possible.
As for the reason why the machine wouldn't boot up from the disc, I have no idea. Here's hoping it does when it comes back. If I were you, I'd have a chat with Apple Customer Relations about the situation.
--Travis

Dropped PB (60cms carpeted wood floor) and now no Airport card recognised

Hubby just dropped his 12 PB by tripping over the cable and janking it off the arm of the sofa (yeah- I know- I could murder him!) onto a double carpeted (rug over fitted carpet) wood floor but it went off.
Took a while to restart and first time round with me trying it made that horrid piiiiiinnnnggg sound.
Started up and checked out OK. S.M.A.R.T. verified.
Ran repair permissions just for good measure and we noted that the Airport was not controllable. Tried to run Set Up Assistant but no airport hardware found. Ran Hardware Test.
Basically the Airport card is now "not found" according to the second, and extended, Hardware Test.
What do I do now?

BIG hug.
Yep- that sure did it. I didn't appreciate just how accessible the airport card was.
When I opened the little side flap the antenna was pressed against it. Pulled it all out and then thought what the hey- just pushed a wee bit harder and it went in another centimetre! So- thank you very much.
Let this be a caution to everyone- armrests of chesterfields are NOT good places to park expensive computers. If your Airport card cannot be found just take off the battery and check under the wee flap- the Airport card should NOT show- it ought to be under the casing with only the antenna showing.

HT4628 I did the security update on 4-2-13 and now my airport card will not turn on. OS 10.6.8 Intel imac 4,1 core duo. My macbook pro did not have this issue and wifi here is working on that. Is there a setting that was changed? Thank you!

Airport card will not turn on after security update yesterday. worked normally (for the download of the update) until then. Wifi here works fine with my Macbook Pro right now so the issue is with the card / computer / software not the provider. Did the update change something?
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Airport card will not turn on after security update yesterday. worked normally (for the download of the update) until then. Wifi here works fine with my Macbook Pro right now so the issue is with the card / computer / software not the provider. Did the update change something?
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Dropped mac mini and now my airport card wont work

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2) If you don't have AppleCare, but are still into the warranty period, get it fixed at Retail.
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No airport card installed! I'm not using the internet and now what should I do?

no airport card installed!
I'm not using the internet and now what should I do?

 menu/About this Mac/System Information (at the bottom, may be called something else) - run that and see if the Airport card is detected.
Some things you can try.
https://discussions.apple.com/message/22246571#22246571
If you live near an Apple Store, make a Genius Bar appointment to have the computer tested. Supposedly there is no charge for testing.
Genius Bar Reservation US

HT1338 my mac book pro now says "no airport card installed "which is weird since I always had airport for the last year?Help?

I get the message "No airport card installed "on my mac book pro even though I've been using it for a year? Help anyone

It's still working right?
You can choose to run through this list of fixes
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Time Capsule lost connection, now my computer tells me there's no AirPort-card installed... HELP!

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Does the iOS device connect to other networks?
Does the iOS device see the network?
Any error messages?
Do other devices now connect?
Did the iOS device connect before?
Try the following to rule out a software problem:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on the router
- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- Wi-Fi: Unable to connect to an 802.11n Wi-Fi network
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar

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I'm sorry to learn that you have endured the audio issues outlined in your post for almost 2 years SusanLM1! This is certainly not normal! Let's get to the bottom of this issue, first please confirm your phone model; your mention that you have the iPhone 5 but your post is on the iPhone 5S forum. Also, share the iOS version currently installed on your phone. What is your ZIP code? Does this happen mainly while you make/receive calls from a particular location (home, office, etc)?
AntonioC_VZW Follow us on Twitter at www.twitter.com/VZWSupport

I changed my internet box and now my airport extreme light flashes amber what I need to do to get the green light back

I changed my internet box and now my airport extreme light is flashing amber but I have internet connection, how can I get the green light back

When you change modem (the internet box I presume) you should reset the AE to factory and redo the setup completely.
However if you merely want to stop the amber flashing.. find the cause.
Open the airport utility and click on the AE..
It will give you a list of faults or problems... fix each one and the light will turn green.
The most likely fault is double NAT.
That means the AE should be in bridge mode.. but if you list the fault we can give you further help with what to do to fix it if you cannot understand the instructions.
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eg Ignore.. the light will turn green.
Lately Apple is saying to use double NAT and ignore the problem.. I do not thing that is a good idea at all.
To bridge however may be easier after a full factory reset than trying to do a change to the setup.
If you run Yosemite.. then I recommend the following.. please read AE for TC.. (Time Capsule is what I mainly use but the setup is identical).
Factory reset universal
Power off the TC.. ie pull the power cord or power off at the wall.. wait 10sec.. hold in the reset button.. be gentle.. power on again still holding in reset.. and keep holding it in for another 10sec. You may need some help as it is hard to both hold in reset and apply power. It will show success by rapidly blinking the front led. Release the reset.. and wait a couple of min for the TC to reset and come back with factory settings. If the front LED doesn’t blink rapidly you missed it and simply try again. The reset is fairly fragile in these.. press it so you feel it just click and no more.. I have seen people bend the lever or even break it. I use a toothpick as tool.
N.B. None of your files on the hard disk of the TC are deleted.. this simply clears out the router settings of the TC.
Setup the TC again.
ie Start from a factory reset. No files are lost on the hard disk doing this.
Then redo the setup from the computer with Yosemite.
1. Use very short names.. NOT APPLE RECOMMENDED names. No spaces and pure alphanumerics.
eg TCgen5 and TCwifi for basestation and wireless respectively.
Even better if the issue is more wireless use TC24ghz and TC5ghz with fixed channels as this also seems to help stop the nonsense. But this can be tried in the second round.
2. Use all passwords that also comply but can be a bit longer. ie 8-20 characters mixed case and numbers.. no non-alphanumerics.
3. Ensure the TC always takes the same IP address.. you will need to do this on the main router using dhcp reservation.. or a bit more complex setup using static IP in the TC. But this is important.. having IP drift all over the place when Yosemite cannot remember its own name for 5 min after a reboot makes for poor networking. If the TC is main router it will not be an issue.
In your case bridge is most likely required.. and it is up to you how you deal with this one.. for now see if it is stable.. if it gives you issues come back and fix it.
4. Set IPv6 to link-local only on the computer..
This is strange one in that apple should have fixed this up ages ago.. but we are finding the auto setting even on Yosemite is still giving the wrong setup.

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lol ok nvm i fixed it

Weird things happened and now No Airport Card Installed.

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