After an initial correct login and a following bad login, Studio deactivate the access to options as [Provenance], [Data Exploration], [Models], etc. and display the status Not Connected, but the initial connection remains valid in the background and it's possible to access the deactivated options by manipulating the URL (see the snapshot):
Both of these options will have more recent versions of Studio where the concern of persisting successful logins on the same machine and browser was addressed.