To log in to the portal, you can navigate to the URL assigned to your instance. The URL ends with /User_Login.aspx.
For your convenience, You can create a shortcut that includes your username. This can be done by extending the URL with the username parameter (/User_Login.aspx?Username=email@org.com).
Your browser will show the login page as shown below
Supply the email address and password and click login.
Please click the appropriate link if you forgot your password or want to register.
Depending the chosen method, the OTP will be delivered towards the requested channel, and the 2FA input screen will be shown
Enter the received code and click continue.