Why does my wifi keep going on and off on my mac?

Hi ...

Try this support article matteo > About Wireless Diagnostics

And here > Wi-Fi and Bluetooth: Potential sources of wireless interference

Try a different channel using AirPort Utility.

Launch AirPort utility then click once on the network name the click Edit. You may be prompted for the network password.

Then select the Wireless tab then click Wireless Options

Select a different channel from the first channel pop up menu then click Save.

New mac book air do have wifi problems to connect to routers i dont know what ur router is bcoz now new air has more faster wifi mean u must hav latest router to match their speed if u got an older then this wont work this why ur dads air doesnt work and ur other 2011 is working bcoz of older wifi u hav on air,its not the same wifi signals 2011 to 2013

If you search on here you will see there are a lot of people with issues with the new Macs and wifi, changing channels is only a fix in side but not for portability

http://www.computerworld.com/s/article/9239965/Apple_pushes_three_times_faster_W i_Fi_to_new_base_station_MacBook_Air_laptops

Thats good im helping ur issue solve ur problem come from diff router so livebox must have faster signals but im surprise its 5 years old(outdate tech)...enjoying😎

Oh and LOL this issue has not been solved as this posts pretends it does - macbook airs are defective. thats all.

Any macbook air with this wifi connectivity problem should be returned. Apple need to fix this asap and we should return any defective unit and postpone our investment in MBAirs until they've sorted this out

anth2013 answers makes no sense! Explain to me exactly and in detail what anth2013 meant, --> "new macbook airs have faster wifi so u must have faster routers to match them" -->

<Edited By Host>

His answer is not correct but gives you a workaround in your home. Any laptop, as the MBA, is portable and should of course work also with older non Apple routers. You cant force everybody else to change router! The solution must be to fix the new MBAs, they are defective.

This is a real issue and Apple is working on it but I'm not buying any new MBA until this is resolved. And I recommend everyone to wait as well, and if your unit is defective, return it. Keep the pressure up on Apple, don't reward them by buying a new router to fix a defective laptop.

I'm not excusing what I think is an Apple software or firmware problem with the wifi. However I'm pretty sure they will fix it eventually, so the question is can you wait? I bought a new Apple router for home and that's the only place I use wifi so I can wait, but others might be so lucky. If you are stuck trying to use wifi (say at work) which you don't control, or you can't afford to throw money at the problem, then there is little choice but to buy another machine.

I suspect Apple will fix this quietly (unless it starts blowing up on all the tech sites) some time soon by an update. This is clearly a bad problem, but I don't think there's anything fundamental wrong with the device. Somebody is having some bad days at Apple though.

But if it is a hardware problem?

I really dont care if someone gets it to work at home by buying a new Apple router, for their stationary MacBook Air.

Most of us by a ultraportable laptop to take it with us to other networks, and we would like it to work without problem everywhere. So I still recommend everyone with a wifi issue to return it, everyone considering buying a MBA to postpone it until Apple fix this.

The solution to a decective laptop cannot be buying a new outer and staying at home with it!

I guess the problem is that your problem hasn't been actually solved - you were wondering why your new Macbook air is not functioning properly with Wifi? Well the proper answer is that it is defective and so the proper solution is to return the laptop or wait for a fix - but there is a temporary solution which is what you have done - buy one of the few routers taht seems to solve the problem - but this is not a full solution, because your problem was NOT caused by your old router but by the macbook air, I would agree with you that if the problem was caused fully by your router then this was the solution - "changing the router" - but this is more like a temporary solution because the problem (your defective macbook) still remains - so I do not want to take credit but I want to say that I wish there was something like "temporarily solved" or something because when you say "Solved" it also indicates that your defective product is no longer defective? Do I make any sense there matteo534? And yes sorry for my outrage, just a bit angry that a reputable company like this can't get something like this right.