Upgraded iMac to 10.8.5 but no longer detects any WiFi networks!

I have a 2009 27" iMac and a 24" 2007 iMac with 2 Airport Extreme routers (2013 The latest.
Everything was working perfectly till I upgraded to 10.8.5.
I lost my internet and both routers. Could not use the Internet and Wi-Fi on my iPhone 5.
Reverted to a backup with 10.8.4 and everything is working perfectly as it did before the upgrade.
Does this mean that I will not be able to upgrade to 10.8.5 or 10.9 ??? 

Troubleshooting Wi-Fi issues in OS X
Wireless Connection Problems - Fix
Wireless Connection Problems - Fix (2)
Wireless Connection Problems - Fix (3)
Wireless Connection Problems - Fix (4)
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  • Upgraded MacBook Pro to 10.8.5 but no longer detects any WiFi networks!

    Was working just fine prior to today's upgrade from 10.8.4 to OS X 10.8.5 (12F37) - Serial W8*******71C
    Wi-Fi: Looking for networks... does not look up any availanble networks home or usual suspects around me.
    Software Versions:
      CoreWLAN:          3.4 (340.18)
      CoreWLANKit:          2.0.2 (202.11)
      Menu Extra:          8.1 (810.11)
      configd plug-in:          8.5 (850.252)
      System Information:          8.3 (830.5)
      IO80211 Family:          5.3 (530.5)
      Diagnostics:          2.1 (210.25)
      AirPort Utility:          6.3.1 (631.4)
      Interfaces:
    en1:
      Card Type:          AirPort Extreme  (0x14E4, 0x8D)
      Firmware Version:          Broadcom BCM43xx 1.0 (5.106.98.100.17)
      MAC Address:          xxx
      Locale:          FCC
      Country Code:          X0
      Supported PHY Modes:          802.11 a/b/g/n
      Supported Channels:          1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161, 165
      Wake On Wireless:          Supported
      AirDrop:          Supported
      Status:          Off
    <Edited by Host>

    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 iMacs. 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.

  • My MBP 7,1 wifi connection suddenly stopped working. It was working fine before until the battery emptied. I turned it on but it froze so I tried to reset it. Then, after that it no longer detect any wifi signal in any areas I go.

    Hi Everyone. My MBP 7,1 didn't have any wifi issues not until 2 weeks ago. The laptop's battery got empty and when I tried to turned it on, the computer just froze. So I tried to reset it. However, I noticed that the wifi or airport can no longer detect any wifi signal. There were instances that it wouldn't turn on when I shut it off but now, it seems okey. I tried the zapping of PRAM and deleting all the things needed as I saw in different threads but it still not working. The ethernet works fine but I still need the wifi. Its been 2 weeks already. I don't have an Apple Store near me coz I am in southern part of Philippines. Can someone shed light on this? Thank you so much.

    Hi!! To add more to the issue, the other day, my airport card is nowhere to be found. It now says no airport card installed which is really crazy. I also noticed that my MBP freezes during start up and I had to zap the PRAM so it would open up. Anyone there who experienced the same thing? I'd really appreciate your suggestions. Thanks!

  • My iMac suddenly no longer connects to wifi network when in KIOSK (username) mode, and only connects when as ADMINISTRATOR mode. Its strange because the iMac has been working fine in KIOSK mode for over a year until 2 days ago.

    My iMac suddenly no longer connects to wifi network when in KIOSK (username) mode, and only connects when as ADMINISTRATOR mode. Its strange because the iMac has been working fine in KIOSK mode for over a year until 2 days ago.

    One of the memory cards was indeed faulty, and the other completely fine
    Thanks very much for all your help!
    Although there is one little thing that I've noticed. The iMac works properly, but I tried to software update to see if that may help my Minecraft sound issue (as I still don't think only having 2GB instead of 4GB would cause such a problem) but the software update application won't work. Running the "Software Update" from the apple menu on the toolbar gains no response, nothing happens. If I run the software update from  system preferences, the application icon appears for a second, then disappears (as in the blank app. icon, the blank canvas with the pencil, pen and ruler in the bottom right corner). It does this every time I try to run it. It did work when the computer was crashing, but this started when on one of the occasions I ran the app. while it was crashing. Since this occured during the crashes, and still occurs now, I'm wondering did something simlar happen minecraft, as it's sound disappeared during the crashes and is still gone now.
    However, the computer is now working again without crashes, which is the main thing, thanks for helping me fix the issue
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  • IPad connects to free WiFi Hotspots, but NOT on my home WiFi network

    First, let me say that I have my iMac and a PC laptop working on my home WiFi network with no problems. My iPad connected to my home WiFi network for several months until about a week ago or so, somewhere around the time that I updated my iPad to OS 4.3.3.
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    My guess is that I have an OS issue, but if anybody knows anything better, please let me know.
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    I think the OS issue is with the password because free WiFi hotspots don't require passwords. So, all of my RF circuits are fine. My password is correct because when I changed it in the Clearwire WiMax modem\router, I was able to connect with the new password on my iMac and PC laptop with no problems.
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  • HT1695 Since i upgraded to ios 6,  I am having trouble stayong connected to wifi networks I connected to on my iPhone 4S .. anyone else have this issue ?

    Since i upgraded to ios 6,  I am having trouble stayong connected to wifi networks I connected to on my iPhone 4S .. anyone else have this issue ?

    I sometimes experience the same issue. But not only in 6.1 but also in previous versions

  • Imac failing to see any wifi network

    I have an Imac which is just over 6 months old (purchased December 2011) running LION, it has been connected to our wifi network since we set it up and there have been no problems, the mac has also been able to see other wifi nextworks available in our area.
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    I have rebooted the machine and the router etc to no avail and all other Macs, phones and ipdas etc are able to see and use the wifi network successfully?
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    I assume its a hardware failure?
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    Regards
    Dave

    Hi!
    I bought my imac 21,5 before 2 months after all lies from people dont understanding computers.
    Yes, I have exact same problem. I am using safari then suddenly the wifi is off. And it scans for wifi networks but it cant find any networks. I am using my old pc now and writing this post. If I restart the imac the wifi gets normal and i can see my network and other networks.
    I have applecare too, 3 years. But i dont know what to do. If you ask apple they will told you "the problem is unusual, or they will told you its not usual that people get problem with mac. If you ask mac users, they will told you "you never get problem with mac" BUT THEY ALL LYING!
    (i have other problems too with my imac. sometimes when the screen enter sleep mode I cant turn it on with the magic mouse or keyboard. I can only turn it on with screen-powerbutton then after maybe 10 sec the login-screen turns black. then I start the screen again with screen-powerbutton the screen turns black again.etc.)
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  • IMAC can not see any wifi networks at all?

    IMAC can not find any wifi network at all. A few days ago the Imac suddenly had no wifi and on turning the WIFI on and off it became apparent that when it scans for wifi it can see no wifi networks at all. I have several other computers and they all see the wifi networks fine. I assume it is a hardware issue but the hardware test I preformed comes up with no errors. Anyone got any ideas?

    Hello Sage10,
    Thanks for using Apple Support Communities.
    For more information on this, take a look at:
    Wi-Fi: How to troubleshoot Wi-Fi connectivity
    http://support.apple.com/kb/HT4628?viewlocale=en_US
    Best of luck,
    Mario

  • Why is it that when i upgraded to ios 6, my ipad 2 no longer connects to known networks automatically

    why is it that when i upgraded to ios 6, my ipad 2 no longer connects to known networks automatically?

    Some things to try first:
    1. 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.
    2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
    3. 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
    4. Go into your router security settings and change from WEP to WPA with AES.
    5.  Renew IP Address: (especially if you are droping internet connection)
        •    Launch Settings app
        •    Tap on Wi-Fi
        •    Tap on the blue arrow of the Wi-Fi network that you connect to from the list
        •    In the window that opens, tap on the Renew Lease button
    ~~~~~~~~~~~~~~~~~~~~~~~~~
    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/
    ~~~~~~~~~~~~~~~~~~~~~~~
    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/
    How to Fix: My iPad Won't Connect to WiFi
    http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
    iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
    iOS: Recommended settings for Wi-Fi routers and access points  http://support.apple.com/kb/HT4199
    How to Quickly Fix iPad 3 Wi-Fi Reception Problems
    http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
    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
    How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
    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

  • HT4623 i just updated my ipad to ios 8 but i cant connect to wifi network..its says my password is incorrect although i know my password is correct as successfully updated 2 iphones and connected to same wifi network

    i just updated my ipad to ios 8 but i cant connect to wifi network..its says my password is incorrect although i know my password is correct as successfully updated 2 iphones and connected to same wifi network

    I had the same problem. I reset my network settings as iOS 8 on my iPad 3 seemed a bit slow. When I tried to reconnect to the wifi the correct password was not accepted immediately.
    after retrying several times it did manage to join the network. The only observation I had was that I had a weak signal and an iPhone next to me at the time.
    make sure you are close to the wifi signal away from any other wifi devices.

  • TS1398 my iphone 4s can not scan any wifi network, i tried everything but still can not scan any wifi connection even though our wifi is working properly in our mac book and ipad. What do i need to do if the problem is the hardware?pls help

    my iphone 4s can not scan any wifi network, i tried everything but still can not scan any wifi connection even though our wifi is working properly in our mac book and ipad. What do i need to do if the problem is the hardware?pls help

    When you say it "can not scan any wifi network" do you mean it is not detecting Wi-Fi networks?
    Is Wi-Fi turned on in Settings > General > Wi-Fi?
    Have you tried Settings > General > Reset > Reset Network Settings?
    Is it just the home network that the device will not connect to? or any network?

  • After upgrading iOS 7 on my iPhone 5, the wifi is not working . It cannot detect any wifi nor am I able to enable wifi under settings. Is there a way for me to fix this?

    After upgrading iOS 7 on my iPhone 5, the wifi is not working . It cannot detect any wifi nor am I able to enable wifi under settings. Is there a way for me to fix this?

    Hi samer almasri,
    If you are having issues with enabling Wifi on your iPhone you may want to try a couple of things to troubleshoot. First of all I would quit all open applications on the phone and try again. See this previous thread for how -
    How do I close apps on my iPhone with iOS 7?
    https://discussions.apple.com/thread/5581063
    Next, I would try restarting the iPhone -
    Turn your iOS device off and on (restart) and reset
    http://support.apple.com/kb/HT1430
    If the issue is still present, you may want to restore the iPhone as a new device -
    iOS: How to back up your data and set up your device as a new device
    http://support.apple.com/kb/HT4137
    Thanks for using Apple Support Communities.
    Best,
    Brett L

  • TS1398 I have an Iphone 5 and it will not connect to any WIFI networks - I have tried following the steps above (including reseting network settings) but it just says 'incorrect password' every time. How can I resolve this?

    I have an Iphone 5 and it will not connect to any WIFI networks - I have tried following the steps above (including reseting network settings) but it just says 'incorrect password' every time. How can I resolve this?

    you have definitely tried the correct steps, all you would need to do now is a back up & restore to factory settings. If after that the issue remains then you would most likely need a replacement unit.

  • My ipod touch will not detect any wifi signals but other devices are connected to the wifi; please help!??

    My ipod touch will not detect any wifi signals but others devices such as my laptops; do connect without a problem. I restored my ipod and updated it and still no wifi signals are being detected.

    Go to your ipod touch wireless settings chose your network and right beside there is button looks like ">" click on that check the dhcp what IP are you getting? do you get any ip? if you do your ipod touch should work with wireless no problem. Also, you may have to enter wep key again.  After that it shou,d save your device

  • TS1398 imac connects to internet for a few mins then stops and cannot find any wifi network-other devices are connecting without problems

    My imac has suddenly stopped connecting to the internet through my wifi network if I restart the machine it finds the network for a minute or 2 and then stops working and cant find any wifi networks, other devices are connecting with no problems. Any suggestions please

    Try posting in the iMac forum. This is the iPod touch forum.

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