Error creating a computer-to-computer network

same problem here, none of the solutions worked for me

Can you make a iPhone 3GS to a internet wireless router with your Macbook? When I use my Internet Tethering to Internet share, it didn't create Internet wireless. Can somebody help me how to do it? 😟

Try this, it just might work.

Go to System Preferences, Sharing, Internet Sharing, turn it off and select share your connection from "Ethernet". Then turn internet sharing back on.

For some reason, mine switched to "built-in ethernet" and it wouldn't let me create the network. After the fix, it now works. Here's hoping it sticks.

Go on your macbook to the network icon in your top toolbar and select "create network". This will make a network your iphone can join. if you want to use the internet, you also need to make sure internet sharing is turned on. It's in system preferences/sharing/internet sharing. Hope this works for you.

This is a known bug on some older Macs with Atheros WiFi. Try doing this, it worked for me:

~ Open System Profiler and click on Airport in the list.

~ Note your Airport device and vendor ID, something like:
en1:
Card Type: AirPort Extreme (0x168c, 0x87)
Firmware Version: Atheros 5416: 2.0.19.8

~ What we want is 0x168c and 0x87.

~ Open Terminal

~ Type 'sudo nano /System/Library/Extensions/IO80211Family.kext/Contents/PlugIns/AirPortAtheros.k ext/Contents/Info.plist' and hit enter

~ Try to find these lines:
<key>IONameMatch</key>
<array>
<string>pci106b,0086</string>
<string>pci168c,1c</string>
<string>pci168c,23</string>
<string>pci168c,24</string>
</array>

~ Just before the </array>, add another line:
<string>pci168c,87</string>

~ 168c and 87 are the IDs I got from my System Profiler. Yours may be different and you should use the ones you get.

~ Finally, you should have:
<key>IONameMatch</key>
<array>
<string>pci106b,0086</string>
<string>pci168c,1c</string>
<string>pci168c,23</string>
<string>pci168c,24</string>
<string>pci168c,87</string>
</array>

~ Exit nano (Ctrl+X, Y to save, Enter)

~ Type (in Terminal) 'sudo touch /System/Library/Extensions'

~ Reboot your system (will take a while to generate the kext cache again)

~ Check if you can create the Computer-to-Computer network. If not, try turning airport off and back on again.

Just worked for me after a LOT of searching and experimenting!

Sushant

Message was edited by: sushpa

Message was edited by: sushpa

Hello, this is also a major show stopper for me too. Ive tried every single suggestion here and still no luck.

Well done Apple!

But seriously, I am an iPhone dev and this is costing me money. I have two macbook pros and the problem exists on both. Both are running snow leopard, which kinda indicates that thats the problem.

Has anyone ever heard from apple as to what the problem is? thanks.
AC

On the Mac Mini, I had the same error as most people in this tread, while trying to create an ad-hoc network ("+There has been an error creating a computer to computer network+").

Installing 10.6.2 didn't fix it, however:
_After installing 10.6.2, there was another update available:_
*"Airport Client Update 2009-002"*

This update solved the problem, now it finally works!

Did apple ever step up and fix this? I have just installed 10.6.3 and it killed airport.

Thanks Apple, I didnt need a operating business anyway.

wellllll... i have just been on the phone to apple for the last 45 minutes n they don't even no how to fix the problem so yeah... if any1 does fix this problem.. u should become a mac software developer =]

Thank you:)
It's work for me, problem solved

I had the same problem and discovered an insane solution: choose another network name than the default one. In my case the default one was something like "Jan's Macbook Pro" which I changed to another name (say, "blahblah") and suddenly it worked!

Note I am on MacOS 10.5.8 but hey, it's worth a try in case it would work for those of you on 10.6 too.