Computer not Authorized
I have downloaded music on this computer previously on Itunes, and this time it comes up and says my computer is not Authorized, so I went through the Authorization process and the message comes up and says this computer is already one of the 5 computers Authorized, but I only have 2 on my list of Authorized computers, so when I go to select the song to play it does it again, and says this computer is not Authorized and wants me to go through the Authorizing process again. So I removed this computer and put it back in as an Authorized computer, restarted my computer and it still does it.
How do I fix this???
Windows, Windows 10