Internal Exception: java.io.IOException: An existing connection was forcibly closed by the remote host

Before you mark this as a duplicate: I searched Google, and this database and did find the same error messages, but that were not helpful and provided no use to me.

My internet provider, modem, router, and hardware did NOT crash, I have checked.
This seems to be happening to others from my research, and no one knows how to fix it.

• This is a duplicate -