Q: New Macbook Air - wifi connectivity problems

that is from 2008, I think that is a solution to a different issue

Seeing the same issue here, brand new i7 MBP. Can't keep a stable connection for more than 10-15 mins. The signal bar shows full strength, but there is no connectivity. Only solution is to toggle off and back on again. I even tried reinstalling MacOS from a clean disk, same issue. Router is generic DD-WRT. Thinkpads, PC, iPhone, Xbox, etc. are all fine. Just this new MBP has the issue.

Apple guys, please figure this out. I live 5 mins from 280 & De Anza, you can come to my house to debug my router + MBP if you want. Too many people have this problem, please solve it soon.

Same issue.  Please figure out if this is software or hardware issue ASAP. 

This appears to be an OS issue, my Mac Pro has begun exhibiting the exact same behavior. This began yesterday and has happened several times since. The solution that is working for me is to turn off Wi-Fi on the computer and immediately turning it back on which restores the capability.

So, I had previously posted that a complete reformat with Internet recovery solved my issue. Alas, it did not. Problem returned. However, I did flash my router firmware and I have not had an issue in a couple of days. I have an Asus RT-N16. It was previously running DD-WRT firmware. However, since I switched to Tomato (the build by Shibby), I have had no issues. So, some of you may be able to try a firmware change/upgrade.

I've decide in my case it is a network conflict at my house.. I've taken the MBA many places, including a friends house overnight and was connected with no issues there or anywhere else. In talking with my IT guy here at work, he agrees that there could be an issue with handing out IP addresses or that there are a number of other possible/probable conflicts and that one solution would be to assing a static mac address (or something like that). I"m fine at home now with the extreme, and I've had zero issues on a multitude of networks using various wifi routers (at my office it is a Netgear WNDR3200 v2).

This issue only happens to me when my Air does a routine Time Machine backup. Weird indeed.

Oh look, we made Gizmodo:

http://gizmodo.com/is-your-new-macbook-airs-wi-fi-crappy-515693652

Thank goodness too, because this issue needs to be publicized so Apple can address this madness...

Antenna problems. Not routers or settings and all that number talk. That makes absolute sense. That would explain why the signal reportedly does drop in Apple stores with a stronger signal.

NOT drop in the Apple stores.

It is definitely an issue related to the Air and not each persons different router.

The Wifi Card is new, but from what I gather (via ifixit) the placement is the same as the 2012 model.  That leads one to believe the issue is with the card itself (hardware or firmware).

To recap my issues -

I have issues maintaining a connection to my Linksys E2000 running DD-WRT.  Later today I am going to revert it back to stock firmware to see if that solves the issue.  The specific issue is that it disconnects but appears to still be connected.

I do not have the same issue when connected to my ASUS WL-520GU running Tomato.  I do lose connections to this router at times, but it reconnects without any issues.  If I wasn't running wifi diagnostics, I wouldn't even know I dropped.

I have no issues when I am connected to my Airport Express (2.4 or 5 ghz) and I have no issues when I am connected to my MacBookPro using Internet Sharing.

I have been contacted by an Apple engineer, a few times, and have sent my applicable log files.  I have not heard from them since Tuesday.

same issue here, posted a few days ago

https://discussions.apple.com/message/22270701#22270701

Got mine on Monday and have had zero problems connecting at home and Starbucks.  At home I am running 2 Linksys E3000 routers with DD-WRT setup using WDS.

I am wondering if maybe the problem people are having has to do with connecting to older routers?

Hi guys.

Picked up a base model today, and got this problem aswell. One interesting find for me is that it keeps it connection for a longer time when I'm not downloading files, like syncing my Dropbox. Probably going to return the computer the next days if Apple dosen't adress this issue, as it is impossible to use as a portable at the moment.

I had the same problem on a 2012 Air yesterday at a coffee shop. Signal icon had full bars but could not load pages or ping until I turned wifi power off and on. I'm not sure if it was an old 802.11g network though.