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)
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..
Have you updated to 10.7.1? I was made live about 1 hour ago.
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..
Reset your SMC and maybe your PRAM too. I've lost WiFi hardware twice and these procedures restored it.
Thank you for the response, but still no fix 😟
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.
Just finished trying this, but sadly doesn't work
Your computer is broken. There is no software fix available. You must take it back to the store.
In frustration with the "Wi-Fi: No hardware installed" issue, I brought my MBP to an Apple Genius Bar. The Apple Genius ran a few tests and concluded that the problem was the Airport card on my MBP. I'm skeptical but hopeful. My MBP was supposed to be ready two days ago for pick-up. It wasn't. I suspect changing the Airport card hasn't resolved the problem and they're still working on it. I don't think this is just a problem of a broken computer. I suspect it's connected with the new OS.
I have exactly the same problem as yours but 10.7.1 fixed the airport issue.
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.
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.
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.
And 20 min later it's back. Will try again...
So I brought it back and they found the same problem again - the wifi ribbon cable was disconnected again. This time they added an extra strip of adhesive to hold it in place. It's been working the rest of the day with no problems, so here's hoping they've solved it.
BTW - I'm using a newly refurbished (1 week old) 2010 MBP 13".
Wi-Fi: No hardware installed
