27" imac wifi problems (intermittant)

This update has doine nothing for me, i still have problems when using the keyboard or mouse to wake up, I seem to be OK if I use the on/off to wake up!

I had a phone call from aApple senior advisor called Nate regarding this issue on Friday. He asked for my help in trying a fix for this issue, I agreed but that is the last I heard of it, he hasn't even had the courtesy to ring back and explain why he has not responded, but I guess thats Apple for you!

😠

I think the wake from sleep issue is something else - it's a problem with Bluetooth not waking properly (assuming you have Bluetooth activated). I have the problem myself from time-to-time and hope that each update from Apple will fix it - I'm still waiting. However, the 'fix' that works for me 100% is: System Preferences>Energy Saver and set 'computer sleep' to 'never'.

I have had my 27" IMac since mid 2011 and it's just started behaving in the same way; intermittent link to my wifi router. I am keen to hear if anyone has found a fix. It is getting annoying!

Hi Alan,

This is the fix that Apple has put out but it has not work for me;

http://support.apple.com/kb/DL1501

I hope you have more luck.

I agree with helpston, if anything this update has made my wifi even worse. Needless to say words can not describe the frustration and anger I am going through right now. Before the update my wifi would cut out every five or ten minutes (this was not, I repeat NOT! an issue with connecting from sleep) ((to be honest I am not sure the techies at apple even read the entire thread because people just started mentioning the waking from sleep just recently in the thread and the original meaning of the thread was for people who were dropping their wifi while in use)) But I digress. But now after the update I have the issue with waking from sleep, AND! I now can't even hold a wifi signal long enough to load a web page, it takes three or more times through network diagnostics to load even apple.com. So sadly I am writing this on my iPad which is exactly why I bought the iMac, the screensavers make excellent digital picture frames (<--sarcasm). So apple, what is your problem? I live to far away from an apple store to just plan a trip into my lunch break (95 miles far) so I would like to hear from someone about what is being done to resolve my $2000 paperweight. You have my email and if you email me I would be glad to arrange a phone call. But I am at the breaking point right now because such smart people can't resolve such a dumb problem. Imagine for a moment that you spent 1/8 of your yearly salary on let's say a car (since I'm sure most apple employees can afford that on their pay). But when you get the car after about a week you find out that the cars gas tank doesn't know how to hold gas. You tell the car company about it and say "well that cars gas tank can hold it, why can't mine?" and they can't tell you why. How would that make you feel? I am a student working my way through college, and my yearly salary isn't a whole lot. So now I would like you to imagine that your yearly salary was mine, and that that car was my iMac, and the gas tank was the wifi, are you getting the picture now? THIS NEEDS TO BE FIXED OR I AM GOING TO BLOW A BLOOD VESSEL! So apple please take my message into consideration, thank you and have a nice day .... Night .... I did NOT enjoy.

Writting in huge blocks like these will not get you very far. I understand you are simply adding your frustation to this thread, but when doing so try to be clear, and to the point.

If, while trying to solve this problem, you have done many things to your machine (tweaks, etc), I sincerely recommend you start with a clean slate: rebuild from scratch, wait until all patches and updates are applied, test, then start adding your applications.

My sincere desire that everything works fine at your end soon.

I have the same issue - iPad, MacbookPro, MacbookAir, AppleTV and two iphones in the family, and all connect to our wireless network fine, but the iMac is very patchy. What is strange is that every time it falls off, I run the diagnostics and the act of doing that seems to push the network back into life. I wondered if it was a wireless/airport card issue, but I have had the machine for 2 years and never a problem before. I should add that we have recently been 'upgraded' by our ISP to a superhub (we are in the UK, with VirginMedia) and this is when the problems for the iMac started. But it cannot be the superhub (which I am running as a modem only and then going through a TIme Capsule), as all the other machines are happy - it must be something on the iMac (as all of these posts point to, too).

Unfortunately the update mentioned above will not work on my machine, as it seems my iMac is a 2008 model, and the patch is only friendly towards 2009 and later. So it seems there is nothing else I can do, other than just use this iMac as a blind terminal, and keep the laptop open for emails. Not great at all, and not good from Apple. This is one of a series of issues over the last 4 weeks with Apple, where their interest in helping as soon as they know the machine is a few years old, fast evaporates. One 'genius' told me in store last week that I shouldn't really expect the machines to work after 3 years...

Anyway, back to the issue - if anyone has another fix for this iMac wireless issue, I am all ears...

GUY

I bought a 21.5" iMac in August. In the last few months I've had issues with it going offline all the time. My husband's is a 2007 iMac and was also having the same problem. I thought it was our router.

Got rid of the Airport Extreme when we got Broadband 50 wireless last week. It's still doing the same thing.

I am running Lion, my husband is running Snow Leopard.

It's intermittent and not always just within seconds. I am sitting here watching Sys Pref and it's been online for a few minutes now - whereas five minutes ago I was sitting here watching it go on and off and on and off every 30 seconds or less. I'd run to my husband's computer and it's still online! I think my problem is worse than his.

Just now it went offline after a minute or two while I have been typing.

Is this my iMac? Should I take it to the shop? Does it need a new wifi card or something? Is it hardware? Is it Lion?

ARGH! Help. 🙂

Judie

Interesting Judie. So you see the WiFi link go up and down? Can you turn up some logging and post it here?

Open a terminal and copy and paste these two lines:

sudo /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport debug +alluserland +alldriver +allvendor +LogFile

sudo killall configd

Now wait for the WiFi to go link down, link up again. Then go to the console application in utilities. Click on the triangle for /var/log and select the wifi.log. Now copy and paste the logging for about 3 minutes before and 3 minutes after you noticed the link going down then up.

***Opps. Should add it is perfectly normal for WiFi to go link down and up with the killall configd command. So watch for an down up event after you have already issued the killall command.

Ok, I did that and got this:

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:

Sorry, try again.

Password:

Should I now type in my password - I'm afraid - hahahahaha.

Also, just before I tried this I shut down my computer. It's always on 24/7 and I hadn't rebooted it for probably a week or more. I thought it might help - maybe my connection is bad? So I did that and now it's working fine for the last five minutes!

I'll still do the terminal thing but I'll wait until it starts to act up again. But do I need to put in my password for it to work - and why is it giving me that warning about losing data?

Thanks.

LOL. When using a command with sudo, the Mac will ask permission (you will need to have the admin password for your Mac) before it runs a command. The airport debug command just turns up logging for airportd and the driver. I promise!

The reason the Mac warns about data loss with the sudo command is you could move/erase critical and/or system files which would hose you. But we are not going to do that. We are just turning up some debug 🙂

hahaha - we don't want to be hosed, that's for sure. 😀

Anyway, it's still online!

But I will save this info and keep an eye on it and as soon as it starts acting up I will run what you told me and report back. 😀

Thanks!

Actually, it be better to start the logging now. If you wait untilt he problem happens again, then the needed logging information will not be there.

Roger. Doing it now!

ok - I am not all that familiar with Terminal - I assumed the password is my admin password but it keeps saying command not found.