Plesk Single Sign-On Crashes Unexpectedly

If logging in via Plesk is not working properly, you can check the following steps to restore Single Sign-On (SSO).

Check Password

Go to the Control Panels tab and verify that the correct password is stored by logging in normally via the Plesk web interface using that password.

Session Timeout

To enable Single Sign-On via our Customer Center, changes to the IP address must be allowed.

Select Tools & Settings → Session Idle Time.

Then enable the option Allow IP address changes during a single session.