To deactivate Single Sign-On:
Click on the menu for the logged-in user and select Profile.
The profile page for the logged-in user will be displayed. Here, you can choose to deactivate the SSO authentication method under Authentication and Security.
Click the Deactivate SSO button.
A Deactivate SSO dialog will appear, prompting you to enter your local password.
Enter the password and click Deactivate SSO.