Unable to log in or authorize Apple Music
I can't authorize my 2019 Mac Pro (macOS 11.7.10) for the Apple Music App or Apple TV App. I only had (4) computers authorized, so I "deauthorized all" just in case ... it still would not authorize. I logged out of both the Apple Music App and the Apple TV App and then restarted my Mac Pro. Now, I can't even login to either the Apple Music App or the Apple TV App; I enter my Apple ID and password ... nothing happens!
As a sanity check, I opened iTunes on my 2010 Mac Pro (mac OS 10.14) signed out of iTunes, then logged in back in and authorized that computer without any trouble. Now, I have (1) computer authorized (the 2010 Mac Pro), but I can't do anything to login or authorize the 2019 Mac Pro.
Both computers are using the same wifi network and use the same Apple ID account, so yes, I am connected to the internet and have my Apple ID and password correct. Is there some bug or security "feature" in the Big Sur OS vs. Mojave that needs to be addressed in order to sign-in to either the Apple Music App or the Apple TV App? BTW, I can sign in,out, and back in to the Apple Store just fine on the 2019 Mac Pro in Big Sur, so that is working.
I have searched online for quite a while but have not found an applicable solution, just the usual; "restart", "check your password", "update your OS", etc. Thanks for any ideas.
Mac Pro