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Wi-Fi: No hardware installed

22369 Views 56 Replies Latest reply: Apr 10, 2014 9:47 AM by James.wilkinson81 RSS
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Sevag Pogharian Calculating status...
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Aug 13, 2011 7:34 PM

Since I've installed Lion on my MacBook Pro, I've had one problem after another.  The latest problem is this:  I can't turn on Airport.  When I click on the Airport icon on the top right of the menu-bar, it reads: "Wi-Fi: No hardware installed."

 

Has anybody else had this problem?

MacBook Pro, Mac OS X (10.7)
  • JustinWhite Level 1 Level 1 (0 points)
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    Aug 16, 2011 3:46 PM (in response to Sevag Pogharian)

    I'm having the same issue. Just got my computer back from the apple store today (they were fixing my computers fans) and when I turned it on when I got home (never tested at apple store) it told me "Wi-Fi: No hardware installed" too.. haven't found a solution yet but your not alone..

  • D0GG Level 3 Level 3 (935 points)
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    Aug 16, 2011 3:59 PM (in response to Sevag Pogharian)

    Have you updated to 10.7.1? I was made live about 1 hour ago.

  • JustinWhite Level 1 Level 1 (0 points)
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    Aug 16, 2011 4:12 PM (in response to D0GG)

    Yeah, and it mentions some stuff about wifi reliablity, but still the issue persists. I also tried SMC resets after I did that and still no go. Ethernet works at least..

  • etresoft Level 7 Level 7 (23,905 points)
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    Aug 16, 2011 4:56 PM (in response to Sevag Pogharian)

    Reset your SMC and maybe your PRAM too. I've lost WiFi hardware twice and these procedures restored it.

  • JustinWhite Level 1 Level 1 (0 points)
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    Aug 16, 2011 5:09 PM (in response to etresoft)

    Thank you for the response, but still no fix

  • JetEngr19 Calculating status...
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    Aug 16, 2011 5:22 PM (in response to Sevag Pogharian)

    I just experienced this the first time after running the update to 10.7.1 (kind of ironic that it messed up my wi-fi instead of "fixing" it).  I went into Recovery Mode and ran Disk Utility to repair my permissions.  Then I zapped the PRAM like etresoft suggested.  One or both of those things seemed to fix my problem.

  • JustinWhite Level 1 Level 1 (0 points)
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    Aug 16, 2011 5:39 PM (in response to JetEngr19)

    Just finished trying this, but sadly doesn't work

  • etresoft Level 7 Level 7 (23,905 points)
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    Aug 16, 2011 6:19 PM (in response to JustinWhite)

    Your computer is broken. There is no software fix available. You must take it back to the store.

  • ThUnDeR BG Level 1 Level 1 (0 points)
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    Aug 16, 2011 6:53 PM (in response to Sevag Pogharian)

    I have exactly the same problem as yours but 10.7.1 fixed the airport issue.

  • Randall Phillips Calculating status...
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    Aug 17, 2011 1:00 PM (in response to Sevag Pogharian)

    I had the same issue happen twice, once with 10.7 and once with 10.7.1. Each time it went away after restarting. I have a 2010 iMac with the I7 processor.

     

    I noticed that when starting up, the blank screen showed a progress bar which does not ordinarily appear. The screen also flickered a couple of time in different phases of startup. This was followed by the No Wifi hardware message. As I mentioned, I immediately restarted and got different results.

  • Nick Fritz Calculating status...
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    Aug 21, 2011 7:13 PM (in response to Sevag Pogharian)

    Same issues as being described here, but don't think computer is broken as suggested above.  I have MacBook - end of 2008.  Wifi was working fine for a couple of weeks with Lion, then started to get the same error messages about no hardware being installed.  When I reboot when I am connected to my Cinema Display monitor the computer boots up and wifi is fine with no problems.  This happens with 100% re-occurence - no external display - no wifi message. Connect to display and no wifi problems.

  • Emmett Lyman Calculating status...
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    Aug 23, 2011 8:23 AM (in response to Sevag Pogharian)

    Had this exact problem this morning.  Fortunately I was just a few blocks from the Apple store so I hit the genius bar.  Turned out the airport cable was dislodged, and reattaching it solved all woes.  Hopefully this is the case for some other folks, too, as it's an easy fix.

  • Emmett Lyman Level 1 Level 1 (85 points)
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    Aug 23, 2011 8:57 AM (in response to Emmett Lyman)

    And 20 min later it's back.  Will try again...

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