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  • gphonei Level 1 Level 1 (0 points)

    Harshdeep Singh wrote:

     

    http://s18.postimage.org/b11pn47d5/Screen_Shot_2012_02_02_at_9_13_03_PM.png

     

    see the screen shot attached.

    The problem is in Lion, I have multiple computers/laptops at home all working fine. It should work with 2.4Ghz, there is nothing wrong in that!

    I am not suggesting that there is not a problem with Lion.  What I am saying, is that Apple has not "fixed" the problem yet, because they don't have the right information.  People are futzing with settings, switching out routers, and doing all kinds of things, some of which, seem to "fix" the problem.  But, I believe that the circumstances fo the changes are just removing the stimulation that makes the "bug" visible in the form of a broken connection.   When I look at your screen shot, it appears that the "network connection" is still configured with an IP address and DNS server that should work.

     

    So, the next suggestion is, when it breaks again, have a terminal window open, and do

     

    ping on your router's LAN address (the default route that netstat -an reveals), a ping on the DNS server(s) what is listed in /etc/resolv.conf, and then do a "traceroute 8.8.8.8".  Also, test DNS by doing a "traceroute www.google.com" to see that DNS successfully resolves the hostname and ping at least starts.

  • gphonei Level 1 Level 1 (0 points)

    Harshdeep Singh wrote:

     

    Let me make all things clear!

    This wifi issue has nothing to do with the 5Ghz/2.4 or channel issues or with speeds 150Mbps/54Mbps or with B/G/N standards.

    The reason for that is everything works fine if we just change the OS either back to Leapard or Windows. It is a confirmed bug in Lion.

    I beleive that Lion has got some compatablity issues with all routers, like some said we have changed the router with Airport one, all starts working! The thing is why hardware need to be changed if the bug is in software! silly

    This type of thought process, and the associated reaction, demonstrates why Apple has been unable to identify the problem and fix it.  Let me use an example.  You say you are an IT kind of person, so let's say that I come into your office, and say my computer isn't working, what do I need to do to fix it.

     

    What would be your first response?  You'd prehaps ask some questions about what I mean by "isn't working", and then based on my answers, you'd perhaps ask some other questions to focus the information gather to what you could sense was the issue.

     

    This is what the Apple Care and Genius bar people do when you bring your problems to them.  If you can't provide informative answers, then they might not be able to focus any further with resolving your problem.

     

    Everyone can't be an expert, but you must understand that you need to help them solve the problem if you want it solved.  All of the things that people are doing to "try" and fix the problem themselves is not helping.  Everytime that the tweak a setting, replace a piece of equipment or change anything, doubles the opportunity for something else to be introduced, which can hide or remove the original stimuation that was creating the problem.

     

    Things llike this, which involve such a wide range of external equipment and conditions (RF interference), are nothing short of impossible to "solve" without some real focus using real tools that tell you "everything" about that part of the problem space.

     

    We all don't have "Service Monitors" and "Networking Expertise".  You paid a price for the equipment involved, and if you bought Apple Care, that's what entitles you to have Apple actually solve your problem.  If you didn't think Apple Care was important enough to you, to purchase it, then when your warrenty runs out, that's it, your support contract is over, plain and simple.

     

    If your computer is valuable to you, and the service you get from Apple to make sure it stays usable, is not valuable to you, then there seems to be a disconnect in the logic of that situation.  There is nothing in the world that is perfectly manufactured, and there is no software written which can be enhanced over time, without changing something about how it operates.  Those changes may or may not be compatibile with what is now, or was before. 

     

    Apple does in fact, understand it's obligation to fix problems in their software, when only their products are involved.  When someone else's product is involved, then you are back in the "PC realm", where everyone is entitled to point fingers at the other parties, because they've demonstrated that it works fine with their own products.

     

    I think there is a bug or software misfeature.  I know that it will not be fixed unless everyone who is suffering, stops messing around, in ignorance, trying to fix it by just "changing stuff around".  There has to be a much more focused effort on each persons part to be a part of the solution.

  • torndownunit Level 1 Level 1 (0 points)

    gphonei, what you say makes sense.  But look through the thread and see how many people have taken their computers to the Apple Store only to be told the problem doesn't exist.   There have also been people with brand new machines who were told the issue was due to them 'fudging settings' when they hadn't even had a chance to do anything.   That tends to discourage people.  If they won't aknowledge a problem at the Apple Store, then what are they going to attempt to fix?

  • Tom Dignam Level 1 Level 1 (120 points)

    taken their computers to the Apple Store........

     

    If they are connecting at the Apple Store wireless, there is no problem, except for third party issues.

  • mrz113 Level 1 Level 1 (0 points)

    After dealing with this problem for more than half a year, I was sick of letting this annoy me on a daily basis. So I gave up.

     

    I have four devices that regularly connect to the internet: a 2011 iMac (running Lion), MacBook (Leopard), iPad2 and iPod Touch. I also have an old iMac (Leopard) that I keep around but don't use.

     

    Since only the desktop is running Lion, I bought an ethernet cable for the desktop and turned off the iMac's ability to connect to wifi networks. Then I reset my Airport Extreme with my old iMac.

     

    Everything works. And works. And works. Just like we Mac people expect it to.

     

    Regardless of how this problem is or isn't addressed in the future, I'm not going to give it another second of consideration until my wife's employer upgrades her MacBook with a machine running Lion. As long as I have an option, I'm keeping Lion away from my Airport.

     

    Obviously this workaround is useful only to people with a Lion desktop and portable devices that don't run Lion. I really feel for those of you who still have to struggle with this.

  • ChristianMoehler Level 1 Level 1 (0 points)

    It seems that this worked for me!

     

    "

    i've been having this problem for over a week n it drove me crazy, but i found the solution! Click on the wifi signal sign, then on "open network preferences", once u're in the network preferences, click on the drop down list in "location", and then on "edit locations" .. and simply delete the old location u were using, it might be "automatic" and just create a new one .. that'll reset ur wifi preferences and it should work like new from there on "

     

     

    I just added a new profile called "auto", and after adding this profile I could delete the old profile "automatic".

    And now wifi connects every time with the new profile "auto".

     

    Thank you, Wayne.Mac!

  • Harshdeep Singh Level 1 Level 1 (0 points)

    I tried and find that when connection breaks.. I ping to my router ip address in terminal

    and I got Request timed out..................

    no dns resolves nothing happens. However if I turn-off my wi-fi and turn back it on, everything works back to normal. I am doing this since the day this problem started...

     

    If anybody feels anything more info. required please let me know!

  • Harshdeep Singh Level 1 Level 1 (0 points)

    ChristianMoehler wrote:

     

    It seems that this worked for me!

     

    "

    i've been having this problem for over a week n it drove me crazy, but i found the solution! Click on the wifi signal sign, then on "open network preferences", once u're in the network preferences, click on the drop down list in "location", and then on "edit locations" .. and simply delete the old location u were using, it might be "automatic" and just create a new one .. that'll reset ur wifi preferences and it should work like new from there on "

     

     

    I just added a new profile called "auto", and after adding this profile I could delete the old profile "automatic".

    And now wifi connects every time with the new profile "auto".

     

    Thank you, Wayne.Mac!

     

     

    I did the same, it worked for couple of hours, after that back to same problem! I tried to change the SSID and various type of securities of wi-fi signal, but no luck

  • gphonei Level 1 Level 1 (0 points)

    torndownunit wrote:

     

    gphonei, what you say makes sense.  But look through the thread and see how many people have taken their computers to the Apple Store only to be told the problem doesn't exist.   There have also been people with brand new machines who were told the issue was due to them 'fudging settings' when they hadn't even had a chance to do anything.   That tends to discourage people.  If they won't aknowledge a problem at the Apple Store, then what are they going to attempt to fix?

    Believe me, I understand what you are saying.  What I'm trying to suggest, is that people aren't able to provide Apple enough information to 'prove' that there is an issue.  The problem, is perhaps "interference to the router", which keeps the "DHCP" restore from the mac from getting a reply and the Mac drops the connection.  There are tons of ways for things to get ugly, and be quite hard to detect.

     

    What I'm trying to do with all these questions and these suggested actions, is to get people who really have the problem, and who are really able to follow through with the investigation and reporting, to finally get the right information to Apple so that they can fix the darn problem.

     

    People are just connecting here and saying "I have this stinking problem", including mostly unsubstantiated "reasons" why they were able to "fix the problem", and moving on.  This is why it hasn't been solved.

     

    This is like taking your car to the dealer and saying "It doesn't run right", and walking out the door.  They might get in it, drive around, run tests and find nothing.  They'd tell you "it works fine, there is no problem", and give it back to you.  If, instead, you said, I was almost in an accident, and I slamed on the brakes and the antilock brakes completely locked up and didn't ever release, and I skidded out of control and almost crossed into incomming traffic!, then, they might have a place to start.  Initially, if you didn't tell them there was an extenuating circumstance that was part of the problem, they wouldn't know where to look.

     

    So with this WiFi problem, Apple needs to know everything that happens.  Each person at each Apple Store, and each person on the other end of Apple Care is just a person.  They have different experiences, different conversational modes and all kinds of reasons that they might not "get" what you are trying to tell them.

     

    It's simply not going to be possible to go in and say I have a problem, and walk out with a solution...

  • Carlo TD Level 3 Level 3 (550 points)

    Do you have the "world wide driver" installed or the "US driver"?

     

    http://support.netgear.com/app/products/model/a_id/12208

  • Deber Level 1 Level 1 (0 points)

    Hey all, this is the first time I write in this discussion.

     

    As many of you, I had the 'Lion WiFi drop bug' since I updated last september from SL and altough i tried many of the suggestions found here and elsewhere i wasn't lucky with my iMac WiFi connected to an 'old' D-Link DSL-2740B with 802.11 mixed n/g/b mode (width 20mhz) and WPA security mode.

     

    My positive solution in the last 3 weeks has been to re-install the Lion OS 10.7.2 Update Combo in 'Safe Mode'. Since I did it, I have no more drops in the WiFi connection. Maybe I was lucky ? I would suggest to try the following steps :

     

    1- download the 10.7.2 Update Combo

    2- restart the Mac in 'Safe Mode' (pressing Shift Key)

    3- apply the update and restart normally

    4- repair disk permission with 'Disk Utility'

    5- restart the Mac again with a PRAM Reset (pressing Cmd-Alt-P-R)

     

    After reading 119 pages of discussions, it doesn't seem to me there isn't a suggestion like this (maybe I'm wrong...). Give a try, I hope you're lucky as me

     

    Of course I hadn't yet updated to 10.7.3 now, but maybe the same solution works.

     

    Anyway, as Mac users for 28 years, I always suggest to update the system with the 'Combo Update' and applying it in 'Safe Mode'... remember it... and good luck.

  • Harshdeep Singh Level 1 Level 1 (0 points)

    Carlo TD wrote:

     

    Do you have the "world wide driver" installed or the "US driver"?

     

    http://support.netgear.com/app/products/model/a_id/12208

    yes its a World wide driver!

     

     

    gphonei

    .................It's simply not going to be possible to go in and say I have a problem, and walk out with a solution.............

    its really shocking that nobody till now able to tell Apple the exact about problem!

  • Harshdeep Singh Level 1 Level 1 (0 points)

    Deber wrote:

     

    ..................................

    My positive solution in the last 3 weeks has been to re-install the Lion OS 10.7.2 Update Combo in 'Safe Mode'. ..................

    I have already updated to 10.7.3 now..

    can I install 10.7.2 combo update??????

  • Tom Dignam Level 1 Level 1 (120 points)

    Please, Go to safe mode and reinstall 10.7.3 Combo

  • gphonei Level 1 Level 1 (0 points)

    Harshdeep Singh wrote:

     

    I tried and find that when connection breaks.. I ping to my router ip address in terminal

    and I got Request timed out..................

    no dns resolves nothing happens. However if I turn-off my wi-fi and turn back it on, everything works back to normal. I am doing this since the day this problem started...

     

    If anybody feels anything more info. required please let me know!

    Okay, others have reported that the network connection is all still active, so your experience is different from some others.  In this case, it seems like perhaps your WiFi connection was indeed broken.  If you can try something more, next time it fails, lets see if we can see what kind of network traffic happens.  Open a terminal window, and run the command line:

     

    sudo tcpdump

     

    It will prompt for your password, enter it, and then this command will "snoop" all network traffic, and should show you what happens.  If you'll leave your computer alone in terms of the WiFi, to see if you an see a DHCP request go out, that would be great.  If a DHCP request never goes out, then we can say that it looks like that might be part of the problem.  If a DHCP request goes out, but is not responded to, then that points more toward something happening at the network layer where a hardware or driver problem is happening.s