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can't reinstall os x mountian lion get error code -4403F

can't reinstall os x mountian lion get error code -4403F on my Mac Book Pro 15"

MacBook Pro (Retina, Mid 2012), OS X Mountain Lion (10.8.3), Netgear router

Posted on Apr 21, 2013 9:37 PM

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1 reply

Apr 21, 2013 10:54 PM in response to jtassel01

This is occuring because your network router or ISP is blocking the connection of the OS X installer to Apple's servers. If you have more than one computer (including an ipad or iphone), then for the purposes of the recovery try disabling your router's firewall and other security measures, or setting your computer's IP address to be the "DMZ Host" if your router supports this feature. This should allow the system to connect to Apple's servers so you can reinstall, and afterwards you can re-enable these security features.


Otherwise you can try reinstalling when connected to another network, such as a fast public Wi-Fi hotspot.

can't reinstall os x mountian lion get error code -4403F

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