Random sleep mode after Mountain Lion install

Just adding my name to the list here. I picked up a new MBA 11 inch 3 days ago and it unexpectedly sleeps intermittently: sometimes a few seconds after waking, sometimes a few minutes. Occurs frequently and is very irritating having to reneter my pw again. None of my MBPs are affected. I was hoping to find a solution here, but it seems like we are all waiting.

Gonna throw my name to list. Other than this issue, I absolutely love my MBA (2013) that I picked up a few days ago.

I have recently purchased a 2013 MBA 11" i5 4GB. I have this same issue. Sometimes suddenly goes to sleep after a few seconds, sometimes a few minutes. Frustrating, inconvenient and very embarrassing in front of clients.

This is on top of the widely reported wifi problems which I also experienced at home, where I had to change router encryption settings just to get an internet connection.

My first MBA (2011) had to be replaced twice due to completely dying after a few days (they suddenly wouldn't turn on). Then the final replacement had to have the wifi/bluetooth module replaced because it was dropping bluetooth connections. So much time in Genius Bars, and too much downtime.

My latest iPhone4 (bought after the last one was stolen) started overheating after 5 months. After a long drawn-out affair this was eventually replaced and within 2 months the replacement's silent mode switch is now malfunctioning.

Now I'm based in China, you honestly cannot get an appointment because the Genius bars are fully booked 24/7. Probably because their products are increasingly garbage. I'd have had this latest MBA returned ages ago but it was purchased in HK.

I am experiencing the same issue on my new 2013 MBA 13" 1.7 GHz Core i7 w/ 8 GB RAM, 256GB SSD (approximately 2 weeks old). The computer will randomly go to sleep while I'm in the middle of a variety of tasks: surfing the web, typing an email, browsing Finder for a file, etc. Sometimes it'll happen right after the computer wakes from sleep, sometimes it'll be after I've been working on it for a couple hours. This is a major issue that occurs frequently on a new machine. Please fix ASAP.

+1 I am experiencing the same unexpected sleep problem on my week-old MBA 13" 1.7GHz / 8GB / 256GB .

Same problem. MacBook Air 13-inch, Mid 2011

Software OS X 10.8.4 (12E55)

Placing a device that contains a magnet (such as an iPhone) under your computer or on its palm rests can cause the computer to sleep unexpectedly.

http://support.apple.com/kb/ts2917

Same problem. MacBook Air 13-inch, 2013

Software OS X 10.8.4 (12E3067)

Same here.

New macbook air mid 2013 had the problem since the beginning and thinking about returning. But i realy don't went to if it can be fixed by a software patch. im kinda thinking its some sort of glitchy cable tho.

How about a word from the man?

Adding my name tot he list 2013 MBA 13' same problem. I log in and then couple seconds to minutes pass by and black screen only to have to log in again. Machine is only 2 weeks old.

Any advice?

Thanks,

Same issue, MacBook Air 13 inch, 2013 🙂

I have it rarely, so I don't consider it as a major deal.

iPhone in my pocket, macbook air on my lap. I think this is the cause of my issues.

Steve Garfield wrote:

Placing a device that contains a magnet (such as an iPhone) under your computer or on its palm rests can cause the computer to sleep unexpectedly.

http://support.apple.com/kb/ts2917

Same problem, no magnets. Happened immediately after upgrading from 10.6.8 to 10.8.4. Happens more than once a day. No solutions?

Same Problem, no magnets MBA 13inch 2013 500G drive 8G Ram i7. Nice machine. Not a horrible thing to go blank once and a while but makes me worry that somthing else will go also.

Exactly this model as well. Same Problem, no magnets MBA 13inch 2013 500G drive 8G Ram i7. Minor issue considering how blazingly fast this machine is. But still....