Q: Lion WiFi Connection Problem

sebastian77 wrote:

 

but every time when the WiFi drops, the Application crashes just a few seconds before the WiFi drops . Does anybody have the same Problem ???

Means, it quits at the moment, the wifi connection is lost.

So, the Application worked as designed. Ethernet lost --> Not connected to wifi / no wifi at all --> Quit

dozy wrote:

 

https://discussions.apple.com/message/16106979#16106979

From there:

Apple is aware of the loss of Internet connection and the loss of Wi-Fi connection after awaking from sleep, and the automatic immediate wake from sleep

Correct for that, where the keywords are: after awaking from sleep, and the automatic immediate wake from sleep

THATS indeed no WiFi or Ethernet issue.

For that, they roll out a update.

Nope: The Tool Crashes. Beach-Ball of death. This is definitely not "works as designed". I also cannot use the tool to analyse the WiFi-Drop problem. So it is useless for this issue.

sebastian77 wrote:

 

i have also the WiFi-drop-Problem since 10.5.3 but now, since Lion, there are WiFi-Drops on some Networks which have never been dropped before (e.g. in my University).

And now?

As a matter of fact, my witchcraft crystal ball is in Jamaika for annual service.

What means, I actually cant see neither your problem, configuration, hardware or system settings.

No information, no help.

Message was edited by: lupunus

sebastian77 wrote:

 

Beach-Ball of death.

Nice wording.

That's definitively not a "worked as designed"

Probably you should use monitoring tools in any case from a different "working" machine in the network and filter to the results for the affected system(s).

Additionally you should use a WiFi monitoring tool, to check for time correlations between signal strength (bandwidth) and drop outs which can cause collisions and bad packets.

For packet inspection and network monitoring there are tools like WireShark. For WiFi monitoring you may use iStumbler or the onboard wifi diagnostics if they are able to produce a logfile.

Alternative ... monitor the WiFi manually with a stop watch and be a good runner :-)

FGS, Steve Jobs and Tim Cook KNOW that the average Mac user doesn't HAVE to know anything about "collisions" or "bad packets" or any arcane stuff like that, or have to use script kiddie tools to fumble around with!  I know about software like iStumbler (which, incidentally, currently has an issue with Lion itself), but the average Joe doesn't have to!  It should "just work", remember?  WiFi works on Snow Leopard, but has massive issues on Lion!  Lion has a problem with Wi-Fi!  This is a Lion WiFi issue!

dozy wrote:

 

WiFi works on Snow Leopard, but has massive issues on Lion!  Lion has a problem with Wi-Fi!  This is a Lion WiFi issue!

Definitively this is NOT a Lion issue but clearly a WiFi issue.

Setting up an wireless network is as much more hightech as one will expect.

Would you ask Ford their cars have to work out of the box in every environment, climatic zone, terrain and with every fuel available, seamlessly and hustle free?

I guess not.

And having disturbance in the network or radio beam, is more like a engine trouble on your car and you have to know what you do or call a professional.

Apple can not cover Everyday Joes network design and environment. Its impossible.

lupunus wrote:

 

Definitively this is NOT a Lion issue but clearly a WiFi issue.

 

Ok, this is a Wi-Fi issue that Lion has caused, since my iMac 27, was perfect in every way for Wi-Fi, with Snow Leopard, it had all patches, fixes and updates applied prior to Lion and was 100% stable with Wi-fi. Router NOT change, nothing changed in any way on my network config, had been stable and fine for over 1yr.

Lion was installed on it, now I get Wifi drop outs, and pages not found, but all PCs on the same network, router and channel are still 100%.

I suspect the driver for the Atheros card is the villain, since I am assuming that Lion has not updated that in the upgrade, but I might be wrong. However

Snow Leopard = 100% Wifi stabilty.

Lion               = 70-80% Wifi stability.

Lion changed up the way it handles a lot of things that had been the same for a while. So the idea that they changed a driver this time around isn't a surprise to me. Just like they could have changed it up each major update in an attempt to improve things, which doesn't always work for everyone since we don't all have up to date equipment. I have, for example, tried to get Time Warner to send me a new model for the last 4 years since the one they sent me is so old their own support folks have to spend 20 minutes finding the manual on it every time I call. But they refuse to unless I want to pay them $200 to rent it. And they won't let me use one they haven't sent me themselves

As for my own wifi saga, it's currently fixed but it is still odd

I ended up installing Lion clean on a blank volume in one of our stations. Then I went in and ran Airport utility. It wouldn't set up using DHCP, which is not a shock with Time Warner's idiot modems so I set it up manuallly using the IP etc I got from network prefs before I pulled out the Ethernet plug. This is what I did under Snow Leopard last year and it was perfect. Last time I let the router reboot then rebooted the cable modem, went back into Airport Utility and switched the setting to DHCP where nothing else changed and after another round of reboot the router then the modem it was working like a charm.

on the other Lion machine when you tried to set it up manually it didn't stick or it did for the reboot of the router and then when you rebooted the modem it all went poof and so on

On the clean install it did this once. I tried it again and it stuck. But unlike before, in network preferences it always showed that whole 10.0.0.1 dummy thing (before it showed the same IP etc as when ethernet was plugged directly in). Odd but okay. My brain says to me perhaps because of the way that Lion handles things now it needs your router to have a dummy cause it keeps saying you have two things with the same IP blah blah. So maybe if it thinks it has a dummy it goes to the router for that info and all is good. My brain thinks that makes sense. sort of. The other side of the brain basically saying 'who cares it's working right'

the really odd is that Airport Utility is showing that the router has a legit IP. Not the same one as before but okay maybe it got reassigned somehow in all the reboots.

All I can hope is that it stays working and doesn't do anything odd

Chris-King wrote:

my iMac 27

maybe this is helpfull for your case:

https://discussions.apple.com/thread/3257143?start=0&tstart=0

PJRives wrote:

 

Lion changed up the way it handles a lot of things that had been the same for a while. So the idea that they changed a driver this time around isn't a surprise to me. Just like they could have changed it up each major update in an attempt to improve things, which doesn't always work for everyone since we don't all have up to date equipment.

I aggree

lupunus wrote:

 

Chris-King wrote:

my iMac 27

maybe this is helpfull for your case:

 

https://discussions.apple.com/thread/3257143?start=0&tstart=0

I will have a read in fully over the next day or so, my iMac is late 2009, so I dont have the option for QOS.

Also my N Router is an older Netgear, and it was running on N but I switched it off when I started getting drop outs on Lion, although in theory nothing changed when I disabled N (so it makes no difference if N is ON or OFF). Also even though my router is N supported, its draft N plus not 5ghz and only 2.4ghz. Things did improve slightly when I logged a ticket with Apple who got me to create a new Wifi Profile, but Safari seems the main villain as it reports No internet connection when Google and Chrome seem to carry on working. Apple have now escalated my ticket to engineers and next level from support desk, they email me once a week or more if they have any suggestions and the ticket is still open. I also have two different support staff on the same ticket, so they are working together on this case. I will let you know what transpires (if anything).

Chris

Chris-King wrote:

I will have a read in fully over the next day or so, my iMac is late 2009, so I dont have the option for QOS.

QOS needs to be enabled in the router settings.

Chris-King wrote:

Also my N Router is an older Netgear, and it was running on N but I switched it off when I started getting drop outs on Lion, although in theory nothing changed when I disabled N (so it makes no difference if N is ON or OFF). Also even though my router is N supported, its draft N plus not 5ghz and only 2.4ghz.

N has its values, even if its only 2.4 GHz. To compare: G speed is max 54 MBit/s, 2,4 GHz N speed is max 150 MBit/s

Chris-King wrote:

Things did improve slightly when I logged a ticket with Apple who got me to create a new Wifi Profile, but Safari seems the main villain

I've read some about the Safari / Lion correlation.

Clean the cache on Safari completely.

Disable all Extensions that where not Lion compatible.

Renski - your post totally worked - thanks so much for your time! 

lupunus wrote:

 

QOS needs to be enabled in the router settings.

 

Chris King - Done.

 

lupunus wrote:

 

I've read some about the Safari / Lion correlation.

 

Clean the cache on Safari completely.

Disable all Extensions that where not Lion compatible.

 

Chris King wrote:

Only got one extension and its Lion Compatible

I will see how it goes.