Currently Being ModeratedMay 14, 2013 9:19 AM (in response to Florian Gottschall)
In a browser's URL bar, put this & hit enter, does that get you to Apple?
For 10.5/10.6/10.7/10.8, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
(There may be better or faster DNS numbers in your area, but these should be a good test).
Currently Being ModeratedMay 14, 2013 9:29 AM (in response to Florian Gottschall)
Wifi problems seem to crop up a lot on here and unfortunately there doesn't seem to be a 'one fix' solution.
However, sometimes any one of the following can help although, unfortunately, not always - in no particular order:
- Check wifi security - if it's WEP change it to WPA or WPA2 (preferably, as it's more secure)
- Change the wifi channel on the router
- Create a new Network Location: http://support.apple.com/kb/HT5289
- Reboot the router
Also take a look at this link and the links within the article for other ideas. They mainly reference Lion, but still seem to be relevant to Mountain Lion:
...and this link:
Currently Being ModeratedMay 14, 2013 10:20 AM (in response to BDAqua)
Hi, i tried to connect to the Ip. But it did not work. (but still WIFI Connection is good depening). I used your DNS adresses - but no change at all ;-( Maybe this information helps:
When I start WIFI connection in iMac it is searching, that it shows that it is lost or not connected and 30s later it shows 100% connection. Does this help in any way?
Currently Being ModeratedMay 14, 2013 10:21 AM (in response to Paul_31)
Thnx - I will go throug, but most of these steps I already did ;(
Currently Being ModeratedMay 14, 2013 10:31 AM (in response to Florian Gottschall)
On my fritz box it shows all devices as connected.
"Device1 WLAN 65 Mbit/s
Device2 WLAN 104 Mbit/s"
Only the iMac is listed without showing how much bandwith it has.
"Device3 (iMac) WLAN"
It looks like the iMac does not even ask for internet access but he is connected to WLAN. The router does not know that the iMac is waiting for internet connection?
Currently Being ModeratedMay 14, 2013 10:37 AM (in response to Florian Gottschall)
It looks like you've tried plenty of troubleshooting steps, so if the Mac is brand new perhaps a phone call to AppleCare would be a good next step. You have 90 days free support (3 years if you bought the extended AppleCare). They may even replace the machine if they can't figure out a way of resolve its wifi issues.
Currently Being ModeratedMay 14, 2013 10:40 AM (in response to Paul_31)
Problem: got it 3 months before as a present but was not able to check it. Too much going on @business. 3 days ago I had some time an unwrapped it Very good timing.
Currently Being ModeratedMay 14, 2013 10:58 AM (in response to Florian Gottschall)
Frustrating that it won't connect. You said that your other devices are connected, but I don't suppose you have MAC address filtering enabled on the router - that would prevent connections if it's not put into 'association' mode.
You can buy the extended AppleCare any time during the first year .
Currently Being ModeratedMay 14, 2013 11:19 AM (in response to Florian Gottschall)
If 'copying' the working settings from one of the other macs, (changing the ip if fixed on those) doesn't do it, you may find help at http://forums.whirlpool.net.au/forum/82?g=295
Currently Being ModeratedMay 14, 2013 11:25 AM (in response to Florian Gottschall)
I try to reinstall completely. Maybe it helps. Thnx so far!
Currently Being ModeratedMay 15, 2013 2:07 AM (in response to Florian Gottschall)
I have been having this problem with just one of our iMacs in our house. I went through Apple support and navigated through all the twists and turns they suggestedto try to get the problem solved. NOTHING WORKED. THEY DON"T KNOW HOW TO FIX THIS PROBLEM. BUT I DO! Unfortunately it involves buying a $30 wireless ethernet adapter (I got an IOGEAR, and I have no connection to their company. Probably any wireless ethernet adapter will work). I turned off the internal airport wireless device and through the network settings in the system preferences connected to my CISCO LYNKSYS ROUTER (which has been bashed left and right in the forums here). THE PROBLEM IS SOLVED!!!!! NO RESTARTING!!! NO DROPPED CONNECTIONS!!!!
So the problem isn't with the router, its with the airport wireless adapter in the iMac.
A wireless usb adapter works just as well.
Don't waste any more of your time. Just get the adapter, and start enjoying the otherwise great product from Apple.
Currently Being ModeratedMay 15, 2013 3:26 AM (in response to Nbod702)
You are right. I did quite everything now and I have to admit that I was online by WIFI about 1,5 minutes. Afterwards it broke down again without me doing changes on it. I will try your version Best, Florian
Currently Being ModeratedMay 23, 2013 5:22 AM (in response to Florian Gottschall)
I finally made (due to reinstall the whole thing) that I got internet by WLAN. But I have it only for about less a minute, afterwards the bandwith (info by fritz.box) is going down to 1Mbit/s. So the mac cancels all requests. When I disable and enable again it is immediately there. But again only for about 30s. Any ideas?
(a wireless hub is already ordered)
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