Can not login to docker with docker toolbox

I’m running windows 7, so I have installed docker toolbox.

So, in power shell when I type: docker login it asks for a login and a password, but when I hit enter, it gives me no information if login was successful.

But when I try docker push <image name> I get an error: denied: requested access to the resource is denied

P.S. If I enter incorrect login/password on docker login , it gives me the corresponding message