Just updated to Os Sierra and it has caused major problems!





I use an external Thunderbolt drive as my boot drive on my late 2012 Imac. When I updated with OS Sierra, Itunes, Siri, and the App store can't connect with the Apple Server. Could this be related to booting off an external drive, or is a flaw that others have encountered. I have reset my internet connection, but it did not make a difference.
I tried system restore and reinstalling but it wanted to reinstall El Capitan; not sure if it was looking at my regular hard drive on my Imac.
Any ideas?
I use an external Thunderbolt drive as my boot drive on my late 2012 Imac. When I updated with OS Sierra, Itunes, Siri, and the App store can't connect with the Apple Server. Could this be related to booting off an external drive, or is a flaw that others have encountered. I have reset my internet connection, but it did not make a difference.
I tried system restore and reinstalling but it wanted to reinstall El Capitan; not sure if it was looking at my regular hard drive on my Imac.
Any ideas?