YEP - IT WORKS  === SOLUTION FOR WIFI CONNECTION ON LION

This looks like the answer to poor wifi on Lion - I have just installed the 10.6.4 kernel extensions for airport as per these instructions and my wifi connection is SOLID. Back to 8011 n only and transmit rates at 300 (max) rather than 8011 n (b/g compatible and transmit rates of 120-130). Also network connect is solid after sleep and shut down, so matfromchicago and earlier posts/threads get the kudos for solving this massive Lion issue.

Follow the instructions here or at  https://discussions.apple.com/thread/2644274, and here https://discussions.apple.com/thread/2644274?start=465&tstart=0 (look close to bottom of page) with another post from matfromchicago and more details on the problematic kernel extension.

This MAY NOT solve your particular problem, but it seems to be working for everyone who replaces the Lion wifi kernel extension with the one from SL!!

Neither of those links work for me:

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Looks like the new Atheros 9380 cards (new tri-antenna cards in 2011 imacs) weren't supported back in 10.6.4 days...

any ideas on a fix for these new cards?  I tried the 10.6.4 kext but no luck...

here is my issue: https://discussions.apple.com/thread/3257143?tstart=0

nipper123, see my blog post (http://thoughts.maayank.com/2011/08/wireless-problems-with-macbook-air-and.html), it's the same instructions (it's based on the same discusssion).

EJW Tas wrote:

 

YEP - IT WORKS  === SOLUTION FOR WIFI CONNECTION ON LION

 

This looks like the answer to poor wifi on Lion - I have just installed the 10.6.4 kernel extensions for airport as per these instructions and my wifi connection is SOLID. Back to 8011 n only and transmit rates at 300 (max) rather than 8011 n (b/g compatible and transmit rates of 120-130). Also network connect is solid after sleep and shut down, so matfromchicago and earlier posts/threads get the kudos for solving this massive Lion issue.

Note there are few things more dangerous than installing back-revision kernel modules like this.

Not only do you possibly reintroduce security holes, but the internal routines the kernel module relies upon have very likely changed between versions, especially between Snow Leopard and Lion.

In short, it may happen to work with your router, but unpredictable behavior is certainly likely and worse yet, future updates to Lion may not install properly.

Or, you've just made your system into a completely unstable, unpredictable entity.

If that's OK with you, that's fine, just a friendly warning.

William, you are right of course but these days hypothetically unstable computer with internet > stable computer with no internet.

For what's it worth, I've been using a MBA with backwards kext for a day now and it has been rock solid so far.

maayank wrote:

 

William, you are right of course but these days hypothetically unstable computer with internet > stable computer with no internet.

 

For what's it worth, I've been using a MBA with backwards kext for a day now and it has been rock solid so far.

It's all fun until something a back-level kernel extension calls ust happens to now be code that does something like format a disk.

It doesn't happen often, but it certainly can, and if newer code expects more information to be passed in additional parameters… well, really bad things may occur.

As I said, if you want to do this, fine, just be aware that really, really bad things could occur as a result; at your own risk in huge, mile high flashing letters.

I think formatting a drive is a bit of a strech... 0.001% chance that the computer will crash and require a reboot at an inappropriate time, losing all my unsaved work, sure, but not a format

These threads were removed.

It is ill advised for any Apple user to play with the kernel. I suggest you submit a bug report and suggested fix to Apple for ocnsideration.

Russa, where can I submit a bug report and suggest a fix?

maayank wrote:

 

I think formatting a drive is a bit of a strech... 0.001% chance that the computer will crash and require a reboot at an inappropriate time, losing all my unsaved work, sure, but not a format

It's an extreme example, but in short you're possibly executing random code or even data as, depending on the method with which the back-level kernel extension was developed, it could call routines that no longer exist, that now rely on other parameters being passed, that have moved slightly in the kernel because of code being added or removed, and so on.

It's a little like having a friend's phone number written down somewhere, losing touch with them, coming back across it and expecting that you will still be able to reach your friend by calling that number decades later; they may still have that same phone number but these days the odds aren't in your favor. As a result who knows who'll you reach, if anyone.

All of what their so called trained Apple Care support team has to offer on this one MAIN AND MOST TRAGIC FLAW IN LION, is all utter nonsense.  None of it is a fix, none of it.  If Lion factory installed on new macs shipping is as tragically flawed as any form of updating or clean installing, Apple is in HUGE trouble.

I imagine that they would be addressing this mass problematic OS faster, if the bulk of their fortune was not in iPhones and iPads and a lot of other STUFF that is irrelevant to any customer that simply WANTS TO OWN A COMPUTER, NOT AN IPADPUTER VERSION OF ONE.

I do not understand, nor do I care to even try to understand why apple took this direction for their computers.

The OS reeks of hidden apple information gathering. The way everything is tied into them having control of your os, your system, your files, your movments on the internet, ALL OF IT.

Hmmm, What is the latest LINUX version out that I hear is running PERFECTLY?

Cupertino says they are monitoring all feedback on this OS.  from the apple website search for feedback and submit your query.  do not expect them to get back to you.

Friend just got back to Japan with brand spanking new MacBook Air bought at AS in Atlanta. Gets into apartment and tries to connect to his Apple Base Station which has never given trouble with an old MacBook.  Cannot connect. After six or seven tries at switching wifi on off, checking passwords etc., finally gets a low speed connection that drops in and out every 10 minutes and cannot hold a skype connection.

Great huh!

I am explaining that 10.7.1 will fix it and he is off to buy a USB/Ethernet adapter in the meantime.

Pathetic service Apple.

My issue was that everytime I returned to my iMac or tried accessing using iPhone/iPad it wouldn't allow any traffic through. Was driving me insane as I needed to access information on there from work etc.

I phoned apple who advised me to set up a new location within airport but only when traffic was going through. 3 days later and it hasn't dropped once. Back to nomad it seems.

For some strange reason airport was using a location dating back to march which I did not create.

Could you check yours to see if lion had strangely done it?