Wifi Connected, No Internet

[benzidirk]

Hi there,

I installed OSX Yosemite yesterday on my MacBook White Late 2009 Model. It's working great except from the wifi. It's connected but I don't have internet. If I turn the wifi off and on again I do have internet for 10-15 seconds and then nothing again. I tried static IP, dns, dhcp etc. nothing fixed the problem. I change the encryption of the wifi, I changed the channel, I changed the password.

Any suggestions?

 

[Bruno09]

Hi,

use the big gun :

Turn the wifi off, move this folder to the trash, and restart the Mac :

Macintosh HD / Library / Preferences / SystemConfiguration

 

[benzidirk]

Hi,

use the big gun :

Turn the wifi off, move this folder to the trash, and restart the Mac :

Macintosh HD / Library / Preferences / SystemConfiguration

I will try it even though it seems odd since it's a fresh installation. and it's only 1 day old.

 

[Bruno09]

Yes sure, but the problem is either in this Folder or in Keychains (assuming there is no hardware problem).

However, I forgot something very important : repair the permissions in Disk Utility, then restart and test the connexion.

 

[benzidirk]

Yes sure, but the problem is either in this Folder or in Keychains (assuming there is no hardware problem).

However, I forgot something very important : repair the permissions in Disk Utility, then restart and test the connexion.

Must I try that before deleting the folder? It is definitely not a hardware problem as it was working fine before on Windows 8.1 that I had installed on this MacBook.

 

[Bruno09]

Yes do the permissions repair first.

If the problem in not solved, move the SystemConfiguration folder to the Trash, without emptying the Trash.

Also check with another device that your Internet access is actually working (wirelessly) ...

 

[benzidirk]

Yes do the permissions repair first.

If the problem in not solved, move the SystemConfiguration folder to the Trash, without emptying the Trash.

Also check with another device that your Internet access is actually working...

I'll try that now. Internet is working with another device. Double checked already.

----------

Yes do the permissions repair first.

If the problem in not solved, move the SystemConfiguration folder to the Trash, without emptying the Trash.

Also check with another device that your Internet access is actually working (wirelessly) ...

Repair permissions is greyed out. Now what?! I clicked Command+I and it says "Can Repair Permissions : No"

 

[Bruno09]

Mmmm....

Boot up from the Recovery partition (*), select Disk Utility, select Macintosh HD in the side bar of Disk utility : can you repair the permissions from there ?

If yes, do it.

Then restart.

(*) "Reboot the computer, and hold down the cmd-R keys while its rebooting. That will get you into the recovery mode".