What to do when you get the following message (while connected to the internet): The iTunes update server could not be contacted
I want to update my mobile (5S) to IOS 11.3. Following the instructions to do so via iTunes, I need to update iTunes to the latest version, but get: The iTunes update server could not be contacted.
I get a similar message when trying to download 11.3: The iPhone update server could not be contacted
I'm working with a PC under Windows 7
iPhone 5s, iOS 10.2.1, Windows 7