Hey there SMoose6,
It sounds like you are unable to connect to the iTunes Store securely. I found this article to help you troubleshoot the message named:
iTunes: About the "A secure network connection could not be established" alert
In an effort to protect your privacy, iTunes uses the Secure Sockets Layer (SSL) protocol when you sign in to the iTunes Store. The SSL protocol uses port 443, the date and time, and other information from your computer to function as expected. The troubleshooting steps below will address the most commonly incorrect information that SSL and the iTunes Store require; this should resolve the issue and the alert should no longer appear.
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