Bitdefender total security 2016 is not updating
The following might happen if your security software is causing an issue with i Tunes: *If you see error 9006, your computer might not be able to connect to Apple servers or your i Phone, i Pad, or i Pod touch.Check for communication issues between i Tunes and Apple software update servers.Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement.Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Other company and product names may be trademarks of their respective owners.
Check your hosts file to make sure that it's not blocking i Tunes from communicating with Apple's servers.
It is recommended that you allow your Bitdefender product to automatically scan for new definitions and update its database silently. Nevertheless, there might be situations when your computer gets disconnected from the Internet, and the automatic download is not possible anymore.
In this case, you can use the latest Bit Defender Virus Definitions package to make sure the virus signatures are up-to-date.
If you still have trouble after you test your connectivity, your security software could be interfering with your computer's connection with i Tunes.
In some cases, it might be necessary to temporarily remove your security software to isolate an issue.
In that order, each utility contains more security measures than the last.