Is there a difference between "blocked" and "banned"?

I've been requested to make a UI that allows to block/ban users from logging in. In the wireframes I've been provided, they use the term "blocked". But I feel like a better term for this would be "banned".

I feel like blocked means "there's something in the middle that is not letting this user to log in", while banned would mean "we are not letting this user log in, and we have our reasons to do so".

Is there any standard connotation for these two terms? Should I choose one over the other, or is this just not that important?