Connection issue: iTunes for Mac

I, too, have this same issue. I have a 2017 MacBook Pro with Touch ID, all up-to-date with Mojave. I am able to access the App Store, Books Store, and iTunes Store on my phone -- just not on my MacBook Pro!! I can't see anything in the Store, and signing in does nothing (after I type in my username and password, the dialog box goes away, but nothing changes). This is all I see:

Here are the things that I've tried (due to scouring the Internet for this problem):

• deleted the files referenced in the Apple Support article
• deleted Preferences for iTunes
• deleted "Container.plist" from all (3) iTunes folders in Containers folder
• re-installed Mojave
• toggled Touch ID
• toggled Trust Security Certificates (Apple Root CA - 3 of these; Apple Root Cert Auth; Developer ID Cert Auth; and, DigiCert High Assurance EV Root CA)

I've spent the past two days trying to get this fixed, and I'm at my wit's end!! Any help would be greatly appreciated!!

Try If you can't connect to the App Store, iTunes Store, or Apple Books - Apple Support.

tt2

Try iTunes - Official Apple Support. If they have a resolution please share it.

tt2