New Macbook Air - wifi connectivity problems

I didn't see anything when I ran it. I did the command-option-r on reboot and have 28 minutes left in my reboot.

When the connection fails and you launch diagnostics it tells you: "Turn on Wi-Fi, join a network, and then choose 'Continue' to run diagnostics." Since you can't turn on the WiFi and join a network it is useless.

Launch the tool when you are not connected to the network and it should prompt you for next steps. I tried it out and it tells you to attempt to connect to the network and if it fails, proceed and collect logs by hitting Continue.

Just turn WiFi on and then try this. Don't turn WiFi off as thats probbaly why you are seeing the warning that tells you turn WiFI On.

This should save some logs that you can hand off to AppleCare when you call them. If you'd like, upload the file it saves on the Desktop someplace and send me the link and I can take a look and see if I can help. ( or paste the link here and I can take a look )

Ok, I tried installing over the top first, doing a reboot and Command-Option-R

It took about an hour, so far, I haven't had an issue (in 5 minutes) and it downloaded the entire image without a problem.

This installed over the top, so all of my accounts and data is still here.

I hope it continues, if it doesn't, I will try a format/install.

3 hours in, thanks Maliath

6 hours in, and fail...

I launched the tool, and it thinks I am connected to wifi (since it shows that I am connected) but it fails to communicate with the router.

Okay, 2 days in after complete hard drive format and Internet recovery and its still doing fine. gmc74, if I understand you correctly, you used the recovery disk (not complete Internet recovery from scratch) and reinstalled the OS over the existing OS and it didn't resolve the issue? If that's the case then it looks like the only known solution is a complete format I outlined in a previous post. Perhaps it's possible that you can simply replace the driver manually and correct the problem, but I wouldn't know how to do it.

Originally I did an internet recovery over the top of my existing install, and it didn't work.

Last night I reformatted the drive an installed the OS from the internet again. Immediately upon opening Safari after the entire install and configuration, I had the same issue again.

I will be calling apple today and most likely returning this mac today as well. Too much work for a $2000 computer.

I too got a shiny new haswell 13" and have had the same issues.. In reading the posts here, I tried a few things. I have re-installed the OS from scratch, no luck. I have upgraded the firmware on my router...thought I was golden, worked great for 10 min.. then reverted to same issue. I changed channels 11 to 1 to 9. I finally called support who suggested each step above and had me re-do a couple (maybe thought I was just saying i'd done and hand't really done) and nothing worked. My router is 2.4 only so I couldn't switch over to 5ghz like he suggested. I did try my air at the mall where apple is and I didn't have the same hangups. Naturally it means it is something in my environment or a setting/file on the air that isnt' playing well or something... but the macbook pro that I just sold, my wife's 13' air (2011) and our houseold ipads (3) iphones (2) and ipods (2) all work flawlessly. Also an HP all in one that is on wifi.

I've printed a bunch of other suggestions from this thread off and i"ll go home tonight and try.. I agreee that for $2K I shouldn't have to go through all this, but I'd rather get is straight than go back to apple and have a genius tell me since it works fine on their network it is my network issue etc.. .luckily, i just bought locally and I have the recepit so I can return and re-buy and see if something changes.

I'm inclined to think it is some stupid snafu and that one of these tweaks and another call to apple and maybe I can work it out. This is just the type of thing I've avoided for the last 8 years or so by leaving PC for Apple, so while I'm frustrated, it's the first time in a long time so I'm going to keep at it... I'll check back to see if anyone else has resolved it another way and I'll post update if I figure anything out...

My fear is that it will work fine on 5ghz, and not on 2.4ghz. If I get a new router, that solves the issue when I am home, but not when I take it on the road.

Keep posting updates, I am going to go through the painful process of calling apple soon.

I agree...Not to mention that the rest of my network is working flawlessly and that includes whole home audio, video, cameras, lights and all my devices... so upgrading the router will mean not only buying a new router, but programming etc.. so my $2K notebook purchase will probably almost double... 😮

Hello Guru

I did run a "diagnostics" with connection in place just to see what it does. Since I did that I've been back a few times doing things on the MBA but apparenly not long enough to let it fail. When it fails again (I can't belief that runing diagnostics would be the cure) I'll run another diagnostics and take both results to a Genius to interpret. Thanks for your guidance & patience.

Note down the time of WiFi Drop

From Finder, <shift><cmd>U to go to Utilities folder. Run Console and click on system.log

In the search bar, type in "AirPort: Link"

Copy/paste the output indicating the time of WiFi Drop

I can help you find out the possible reason.

Did you migrate content from old Mac to your new 2013 MacBook Air?