Currently Being ModeratedApr 9, 2012 11:45 AM (in response to joepark14)
Currently Being ModeratedApr 16, 2012 8:42 PM (in response to joepark14)
I had this happen to me twice and the solution for me was to delete the wifi network and keychain password.
The first time i fixed it by restoring from Time Machine which took a long time. I also tried the renew DHCP, delete com.alf.plist etc to no avail. The second time I found a better solution from someone on this forum:
Go to Network Settings
Turn Airport Off
Click Advanced tab
Select my wifi network and hit minus sign to delete
Go to Keychain access in Applications/Utilities
Find your network name in the list and delete that password login
Then go back to Network settings and turn airport back on
Click plus sign then Show Networks
Choose your network and re-enter your password
Then airport should work again, this is what fixed it for me.
All the best
Excellent solution. Thank you!
It helped me after a day of frustration: my mac would not connect to home wi-fi network at all but would to everything else.
One of the clues should have been the keychain password entry for the network as it was much longer and incorrect, compared to another mac's keychain entry which was connected to the same network. As soon as I saw your instructions I felt relief.
Currently Being ModeratedJun 6, 2012 10:45 PM (in response to joepark14)
I know you seem to have got things sorted, but for others for whom this may not have worked, here is how I got over the "self-assigned IP" problem
with airport selected, go to "advanced" and then select TCP/IP
In the "DHCP Client ID" box (which is usually empty) put any random string of numbers
THEN renew the DNCP Lease,
It worked for me after trying a lot of other ways
Currently Being ModeratedJun 7, 2012 10:55 PM (in response to ryanhaldy)
Glad to be of help. I cannot claim credit but unfortunately have lost the original source for this (another, non-apple forum). It really is strange how many "final solutions" there are for this problem, that don't actually work in all cases.
Anyway - spread the word - maybe YOU can help someone get over this annoying problem
Currently Being ModeratedJun 8, 2012 10:30 PM (in response to ryanhaldy)
So sorry to hear that. The only other trick I have is the following. I don't know if it will help for you
Applying a manual IP under the Configure IPv4 selection should work. In your home router this will be 192.168.1.X . However, this for me is not where the problem lies - for me it is when out on the road using a third party WiFi, what IP to use?
You may find that your iPhone can pick up the network. If so, check your phone under settings / WiFi right arrow on chosen network and see what IP your phone has picked up. Put the same IP into your laptop using "Manually" - just use a different last digit
That the extent of my suggestions I am afraid!
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