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

Aug 3, 2011 11:50 AM in response to nbooradley23

OK then, mine is a Netgear 834G v3. Lion on iMac won't connect to it all. SL running on separate HDD on same iMac - no problem. Haven't tried a hard wired connection, mainly because there are so many posts on here suggesting that Lion will actually muck up perfectly good existing connections that I daren't. Amazing isn't it, that just the kind of thing you fear from a virus, you get from downloading high end software from one of the most trustworthy organisations around? It's a funny old world!


I now regard Lion as a novelty, a cub that might one day grow up to be a serious OS. Until then, I will stick to the tried and tested SL.


Bit alarmed to hear that Apple censored your post. If that was just to protect their interests it suggest a worrying Big Brother kind of trend. Makes you think they might be a bit rattled. ------GOOD! They deserve to be with their current showing. Not so much a lion, more of a bull in a china shop.

Aug 3, 2011 12:27 PM in response to simon57

From what i'm readind the V3 of your netgear router has a TI-AR7 chipset (texas intruments) it was v4 of the router that then uses the Broadcom chipset.


Your issue described mine where everything in the house would connect apart from the lion installation.


Once I installed a Broadcom based chipset router - in this case a buffalo router the problem seems to have gone away and the mac has been stable on WIFI since.


It seems more and more that the problem seems to be how lion works with certain wifi router chipsets.


I found it pretty orwellian of apple to remove my facebook link. it was not like it was spam or knocking them. All it is in a place where almost 50 of us are hanging out discussing the issue and sharing possible solutions and experiences. sheesh!


Anyway I'm not suggesting people run out and get broadcom based routers as a fix i'm just saying if you have access to one its worth testing it out to see does your wifi problem vanish.

Aug 3, 2011 12:47 PM in response to lrogersinlv

I have same connectivity issue with Lion. But a little wierd. We have 2 MBP's. one is the 2.8 Ghz and the other 2.6Ghz. After Lion was installed the 2.8 works great. On the 2.6, everytime you wake it from sleep it shows a connection to my airport but no internet connectivity. If I go thru the painstaking diagnostics offered it fixes it till it goes to sleep. Cycling the wifi, on the MBP, off and on also fixes it.....till it goes to sleep. What a pain!

Aug 3, 2011 3:51 PM in response to lrogersinlv

Similar issues here.


The wifi symbol is as it should but no Internet or network transfer connections. If I turn wifi off and back on it works fine again for a while. However, if my mac is constantly sending and receiving data it stays active so therefore I just leave a terminal screen open on a ping to a website. Low processing power and saves me smashing my mac to pieces :-)

Aug 3, 2011 6:35 PM in response to lrogersinlv

add another person to the list


just bought a 13.3" 2011 macbook pro today,I immedietly downloaded all the updates via wifi which worked perfectly, installed Lion that I downloaded via wifi and since the install the wifi is insanely slow ! its definetly not a problem with my wifi routers / internet my other pc's devices are working fine and I have tested the macbook on various wifi connections and its slow on all of them


anyone have any ideas on when this is going to be fixed? its a shame I have this thing for a few hours and already realize a major problem 😟

Aug 3, 2011 7:51 PM in response to lrogersinlv

The second I installed Lion the internet became unstable. I thought it was the modem and router for a while, but couldn't figure it out. Then I noticed these posts and realized that every time I opened the Macbook 5.1 I upgraded, every connection in my house would drop(my Xbox 360, and other two macbook pros(running snow leopard) were disconnected as well). When my Macbook 5.1 was closed (and router restarted) the internet worked flawlessly with all devices for long periods of time. The two macbook pros running Snow Leopard work fine. I wish Steve Jobs was right when he said Apple products "just work" because this is just dumb. Why would my Macbook 5.1 running Lion disrupt all my Wifi connections? And I have tried every fix listed here. ALSO, I did a clean install of LION from a disc I burned. FRUSTRATION!!!

Aug 4, 2011 2:06 AM in response to lrogersinlv

SOLVED SOLVED SOLVED I solved the problem i must be god. I have read all of the forums and everybody had gone so deep on how to solve this that i got lost, are you ready for the solution:


I changed my router from my bt latest we dont drop signal crap back to the router i have had in the cupboard for years my trusted netgear.


now with the bt router i was dropping every 20 or 30 secs and so far touch wood i have not dropped once in 24 hours since putting my old 5 year router back on.


but before i can get to excited i did have to give up the range the router can cover, i mean the bt was great it covered a great range but what is the point of range if it just keeps dropping signal.


SOLUTION THEN IS: change to an old router. i forgot to mention my imac is 6 months old and has lion, my bt router did not even like snow leoperd.


Knowing my luck this wont work for anyone else.


hope this helps thanks andy

Aug 4, 2011 3:36 AM in response to lrogersinlv

Coming in to this discussion a bit late but ever since I installed Lion I keep dropping the WiFi signal. I have a first generation Airport Extreme and a 27" iMac with Intel Core 2 Duo processor, so it's a couple of years old now but still in very good nick. It does appear to be an issue with Lion, which I hope the boys and girls at Apple address soon. It's playing havoc with my social networking!

Aug 4, 2011 4:47 AM in response to andrewfromcoventry

That is very interesting, I have been using the Mk 2 Home Hub, initially I was having the drop out problems solved by either a SMC reset or moving the hub ID to the top of the available networks list and I have been stable for the past week, your note is timely as BT delivered the new wonder MK 3 home hub this morning. I will approach it with care this evening and report back.

Aug 4, 2011 5:44 AM in response to Arthur Jacks

you will cry if you put that new bt home hub on. what i found with it was that it kept rebooting itself every half hour which i put up with, but was getting greif off the misses and kids because every time they wanted to watch iplayer or sky through xbox, or go on apple tv it just kept buffering and rebooting, and then when i installed lion after being locked out of apps for days it just said no and wi fi just kept dropping.


I think the comment about the chipset in different routers is where the answer lies. maybe im a conspiracy artist but it seems that if you have a chipset that is intel then it works and funny coincedence is that apple use intel i presume.


my old bt router i had before there new all singing dancing one did the same just kept dropping but only once a day untill i changed channel then it was only now and then.


good luck guy's my wi fi is working so all fine and dandy this end.


thanks andy

Aug 4, 2011 6:55 AM in response to lrogersinlv

Seeing the sheer amount of people having this problem I realise this is not unusual for Lion so why do we still have this problem? Apple??? Every since I upgraded to Lion (I have the MacBook Pro 17"

2.93 GHz Intel Core 2 Duo) the connection (wi-fi through Time Capsule) drops every 15 minutes for a brief period it is true but enough to aggravate even the more patient user. Please please please solve this Apple - upgrade the software for the AirPort or do something by the grace of the divine authority 🙂

Aug 4, 2011 6:56 AM in response to michaelfromcreve coeur

Your Air may be having this problem due to a known and from what I gather, perhaps unresolved power issue with the Air. I owned an 11 inch for a week when they came out. In that week it would not wake from sleep, it would not charge when in sleep. when i went in for a surgery after 5 days, I powered it off with a full charge and two days later when I turned it on the battery was drained. It then started not waking from sleep ever. Also, it would go to a black screen and turn off. I returned it for a mbpro that has had no issues.


On the extensive thread I started, and the issue wound up in the news on sites like huff post etc. just after release, many came to believe it was a definite issue with flash and using Safari. When some owners stopped using Safari for Firefox or Chrome, the problem got better or stopped.


Safari is tied into the network and wifi connection, network diagnostics. It is as might be expected not a very flash friendly browser. Apple's distatste for flash is well documented, but alas, most of the internet still uses it.


Try researching power issues with MBAirs.


This is the thread that started it back in Oct 2010.


https://discussions.apple.com/thread/2630327?answerId=12971720022#12971720022&messageID=12971720#12971720?messa geID=12971720


Good luck

Aug 4, 2011 7:42 AM in response to jamiana

Unaware? UNAWARE? They saw you coming surely? It would mean that they do not monitor threads like this. And we know they do because at least one poster here had his post edited. So they do know, of course they know. The reason they don't admit to knowing we have to guess at. Perhaps they are so sure their products are bulletproof that it's a Hear No Evil position. Or it could be that they themselves haven't yet figured out what is causing all the mayhem. Certainly wouldn't want to admit to that. After all, they're all Super Geniuses, aren't they?

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