Lion WiFi Connection Problem

Since installing Lion on both my IMac and MacBook Pro, the WiFi cycles (wifi icon on the menu bar) - looking for network - network on - looking for network. iMac with OS 10.6 doesn't have this problem so it's not the AirPort and there was no problem prior to installing Lion. The AirPort Utility log shows lots of connection activity but I don't know if that means anything. The network troubleshooter says theres no problem but it's causing big problems with connection speed and applications that need a constant connection are giving me network errors constantly. Please give me some advise....

Posted on Jul 20, 2011 5:19 PM

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2,673 replies

Sep 1, 2011 5:40 AM in response to Shivetya

Shivetya wrote:


Still trying to understand how changing the length of my wireless password ended my connection problems under Lion.


Thats basically not a Lion issue.


I once used to have a AVM wireless router that refused by default to establish a wireless connection until the password had 13 characters to match the HEX deph.


Normally the rules say "The length of the password have to match the chosen encryption depth"

Most modern systems tolerate shorter passwords. Some fill up the missing rest automatically e..g. with 0 (zero) to give the user more convinience.


Maybe in your case the former password contains unususal characters like so called nonprintable ASCI signs (Sample: ^ ) or the existing password in keychain was corrupted for some reason.



Have a nice day


Lupunus

Sep 1, 2011 6:54 PM in response to lupunus

also try,

'interference robustness' - checked off


mine is an old domed airport extreme

use 'airport utility' click through airport/wireless/wireless options


my imac has been impotent with near constant 'request timeout for icmp' uhg for a month thus rendered worthless.

i've followed and tried every trick in all the forums & posts relating to the crisis and that bit of hudu worked for me.

weeks of uncertainty and now it's been solid for a day thus i feel much better about my life...



i was thinking the problem was with the atheros wifi chips or kext or something



bumps out to all the suffering and afflicted mac'sters keepin the message alive till we can all delete this thread from our lives like i'm about too...

Sep 1, 2011 9:41 PM in response to Nogueira

You say you have seen tons of folks reporting problems but the problems aren't the same. Some folks are having trouble getting their computer to talk to wifi, some it is an issue with updating their actual router and so on. All with different computers, different routers, some might have firewalls on, some don't. Some are running programs like Little Snitch, some aren't. Some updated from Snow Leopard, some did a clean install. Some have manipulated settings like Host files to use pirated software, some haven't. So many variables make nailing down the problem a mess


Something you will learn if you hang around Apple during enough releases is that they never speak until they have an answer. yes it is frustrating but generally by the time they actually speak up or post an update they have the solution for at least 85-90% of folks if not more.

Sep 2, 2011 12:56 AM in response to PJRives

I agree with PJ. So far, the easiest fix I come up with so far is to go into system preferences, click on network. Then turn wifi off. After a few seconds I turn it back on. I seem to stay connected after that. And it beats, restarting the Mac or restarting the router.


But I only have one network listed, and I use Airport. So I don't really have a complex setup either.


As I've posted on another network, I think the best solution is to take a break from the madness, and go make a sandwich or something. I'm not saying that to be clever. Seriously, this will drive you nutty, as it did me for a while, and it's not worth it.


Yes, I know many of us need wifi to work for business (who isn't using their mac for business in some form?). But I agree with PJ. It seems like there are too many variables to this problem for there to be one fix. We might all be talking about seven or eight different problems here that manifests as one result: lost wifi connection.


Cheers.

Sep 2, 2011 1:04 AM in response to lrogersinlv

I have a stable wi-fi-connection since I did an absolutely clean installation (= formatted the HD / installed Lion from dvd / only took music, pictures, videos, documents from my time-machine-backup but NO user-settings / same router/firmware as before...) of Lion at the beginning of August (> which means 4 weeks without problems). Before that I tried all the different solutions recommended in this post e. g. by the Apple`s support unsuccessfuly.


The only small bug which appears from time to time is that my Mac tells me it can`t connect to the preferred network after coming from sleep-mode although it is connected (in this case I just have to press the "cancel-button" and everything`s fine...).


Some facts on my setup:


location: Germany

provider: 1&1

router: FritzBox 7220

iMac: 21.5 inch - Mid 2010 - i3 3.2 GHz

software: Little Snitch, Sophos Antivirus, iStat Menus, Skype, Firefox, Chrome, TextWrangler, Adobe Photoshop Elements 9, Cyberduck, Handbrake, VLC, Xee, CleanMyMac, AppFresh, iLife+iWork, GoogleEarth, DropBox + various apps from the appstore

Sep 2, 2011 9:07 AM in response to Jean Shea

The turning off wifi in Sys prefs works for those where the problem is computer to router. But for many folks the trouble is router to cable modem. The router has lost track of the correct IP etc and when you try to fix it, the router doesn't save the new details. Lion, it seems, can't update the settings and doesn't know it can't. this is a problem that is likely only fixable via a Lion update. Annoying but it happens. Probably doesn't help in my case that I have an older cable modem and TWC doesn't send the new one they keep promising. So for now, i'm back on the ethernet.

Sep 2, 2011 12:34 PM in response to lupunus

There is an awfully large amount of armchair diagnosing going on here that is just causing more useless stuff to read and no real help. There are probably several bugs going on here, and I think it would best if people would just post their experiences and leave it to the developers to diagnose based on what people are encountering. Unless you download and peruse the source to Lion and try understand the firmware for the radio(s) and all other other nuances of what software is the same and what software is new/different, it's pretty silly to guess, especially on this list.


The developers are not going to get much out of reading 46 pages of comments unless each comment is short and concise about what works or doesn't work, and what steps you've tried.

Sep 2, 2011 7:51 PM in response to gphonei

"The developers are not going to get much out of reading 46 pages of comments unless each comment is short and concise about what works or doesn't work, and what steps you've tried."


Except that the developers nor tech support read this forum. Only feedback via AppleCare phone support, the express lane or a genius bar appointment is looked at for such things.

Sep 3, 2011 9:51 AM in response to lovsky

Scrivo dall'Italia: anch'io uso un Alice gate 2 wi-fi plus e nessuna delle soluzioni, nessuna, proposte in 47 pagine ha funzionato, neanche quella di cambiare i canali del router Alice.

Il mio Airport extreme sul mio IMac ha firmware Atheros 9280 e non funziona....invece sul mio Mac Book che ha Firmware Broadcom BCM43xx 1.0 tutto funziona alla perfezione sulla stessa rete wi-fi: quindi non è un problema di router ma, molto probabilmente, di driver e di Lion, perchè con Snow funzionavano entrambi.

Apple non ha ancora risolto il problema e questo è grave!

Buona giornata!



I write from Italy: I use a Wi-Fi Alice Gate 2 plus and no solutions, no proposals in 47 pages it worked, not even to change channels on the router Alice.
My Airport Extreme has firmware on my iMac Atheros 9280 and does not work .... but on my MacBook Broadcom BCM43xx 1.0 firmware that everything works perfectly on the same wi-fi so it's not a router problem, but very probably the driver and the Lion, because both worked with Snow.
Apple has not yet solved the problem and this is serious!
Good day!




Sep 3, 2011 11:00 AM in response to ryyjma from san fedele intelvi

Assolutamente d'accordo, il problema é Atheros 9280 con Lion. Confermo, nessuna soluzione proposta in 47 pagine risolve il problema. Sarebbe possibile effettuare un downgrade del firmware del Atheros 9280 alla versione presente in SL?? Quale versione del firmware é presente in SL?Mi sembra di aver letto qualcosa di simile qualche pagina fa...

Inutile esporre tutta la frustrazione nei confronti di un problema del genere.



Absolutely agree, the problem is the Atheros 9280 with Lion. I confirm,no solution in 47 pages solves the problem. Would it be possible to downgrade the firmware to the version of the Atheros 9280 in SL? What version of firmware is present in SL? I think I read something similar a few pages ago ...
Needless to expose all the frustration with a problem like that.

PS: A friend of mine imac with 21.5 in 2011 has the Atheros 9380:4.0.55.4-P2P + Lion 10.7.1 and no wifi problem!




Sep 3, 2011 11:47 AM in response to lovsky

....finalmente qualcuno che mi dà ragione....

Il mio IMac è del 2009 quindi il firmware è meno recente....se con la versione 9380 funziona, basterebbe un aggiornamento firmware.....ma io aspetto da 40 giorni che si muova qualcosa!

Finalmente abbiamo scoperto qualcosa...speriamo in bene!

Buona giornata!



.... finally someone who agrees with me ....
My iMac is 2009 so the firmware is older .... if it works with version 9380, a firmware updatewould be enough ..... but I will wait from 40 days to move something!
Finally we found something ... hopefully for good!
Have a nice day!




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