How to logoff from wpmu dashboard and login with new password?

Hi all, i changed my wpmu account password and i went to wpmu plugin dashboard on my networks to modify the login details from all my site networks but i don't see anything saying logout from the wpmu dashboard. I already deactivated the wpmu dashboard plugin and enabled again but still doesn't ask me for login with the new changed password.

Do i need to logoff or its because i have the sites already listed in notifications panel and don't need permissions anymore?