Enable Facetime


Problem is: Facetime doesnt get a valid cerificate from Apple.

Solution:

1. Delete Preferences

/Users/(yourusername)/Library/Preferences

delete the files:  com.apple.FaceTime, imagent, imservice keychainaccess (the .plist and the .lockfile)

2. Keychain App
keychain: Login
delete the following:
<key>, FaceTime, ids: identity-rsa-public-key, ids: identity-rsa-private-key

3. rename your Hosts file just for a period to get a valid certificate from Apple

in terminal mv /etc/hosts  /etc/hosts_inactive
(this file blocks internet access)

4. reboot

5. Now your pc can connect to the apple server and get the certificate. Start FaceTime and setup your account.

If you have registered and FaceTime is running  enable your old hosts file again in terminal:
mv /etc/hosts_inactive  /etc/hosts

and reboot