[SOLVED] Update Unauthorized, after latest update.

I had this same issue and beat my head against a wall for the longest time. The answer is indeed in the Package_Repositories page, but its not as explicit as you'd like. I had to edit my repositories list at /etc/apt/sources.list as stated in the post, but you also have to comment out the line listed in /etc/apt/sources.list.d/pve-enterprise.list. If you don't comment out the line in the second file, it still tries to use the enterprise repo. After commenting that out, run apt update and it should work.
Also me, just registered just to say thank to @kirkofthefleet
 

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