Losing airport connection after sleep

Hi Waddo

Have you found a solution for this? I am having the same problem, but with a wired (ethernet) connection. In the morning, when I wake the iMac (not every morning, mind you), Safari tells me it can't find the server. Same goes for Mail, iTunes and iCal. Restarting these applications does not help. Setting the network connection to manual and then back to DHCP does not help. The only thing that does help is restarting the computer. Annoying. Most other applications are not affected, like Firefox, Filemaker, TeamViewer, Terminal (ping) and interestingly, other Apple apps like Remote Desktop and Airport Admin are also OK.

iMac 27'', 2.93GHz, Mac OS X 10.6.7.

Hm, maybe the 10.6.8 update will help? Did you try it?

Sorry I can't be any help...

Tina

Hello Waddo and Tina!

When did this start to happen? By any chance, did you install/uninstall any application before this occured?

I suggest to check System Preferences -> Energy Saver and put a tick on "Wake for Internet Access" just to be sure that your internet connection is not being disabled while your computer is sleeping.

Hope this would help you.

Hello KeeChan

I have already set that option. When did it start - difficult to say, 2 weeks ago, maybe 3? I think it did not happen from the beginning (the iMac is quite new). It doesn't happen every morning, today it did, yesterday it didn't. I have a schedule that should set the computer to sleep at 23:00, but this doesn't really seem to work, I just checked the log - it is trying to make a connection to my wireless mouse the whole night (I always turn off the mouse when I leave the office). But it does so every night, so this doesn't correlate with the network connection loss...

Tina

Just want to know, have you by any chance installed CISCO VPN Client?

You can check this by going to:

Macintosh HD -> System -> Library -> Extensions

Try to look for a file called CiscoVPN.kext.

Let me know if you have that.

No, I don't have the CiscoVPN installed. I used to have it, but since 10.6 you don't need it anymore. It's properly uninstalled, so there should be no remainders behind that could interfere.

Tina

I had something similar happening until one day, nothing would get online. I had to connect my macbook directly to the airport extreme (it was what I used to set it up with initially so it has the software to manage the airport), turned out airport needed a software/firmware update. Did the updates and it has ran great ever since.

Joe

FYI, I'm having problems identical to Waddo1. Losing internet connection when waking from sleep. OS X 10.6.8

Has been happening for a couple of weeks now. AirPort signal strength meter showing good rf signal. No application adds or deletes for a long time, just the Apple updates.

Any advice gratefully accepted.

Bill

I am having the same problem for the past week or so. When my iMac wakes from sleep, my airport signal has a "!" in the middle of it and Safari, iTunes and Mail are "not responding" I get the wheel spinning and basically have to shutdown and restart every time by forcing the power off. Not a good situation. What is going on . . .

By the way, it is not Airport because my iPad and iPhone work fine over the wi-fi, it is just the iMac.

Hi everyone,

I have the same issue: I lose internet connection when waking from sleep... since I upgraded to OS X Mountain Lion (10.8.1)...

Any solution to resolve the problem?

Thanks

François

I just spoke to someone in Apple Care and he had me go into the library on my hard drive and delete the prefs. folder. (actually he had me rename it with ".old" at the end to save it). Then he had me restart the computer thereby creating a new prefs folder. We put it to sleep a couple of times and no problems so far. Will see what happens. He wasn't sure it would solve the problem, but we will see.