Unable to access to Plesk by using the administrator account: Another user with the same username (admin) is already logged in to Plesk

Daniel Yordanov

Updated January 30, 2024 16:21

Plesk for Windows Plesk for Linux kb: technical

Applicable to:

Unable to log into Plesk with administrative account while another user is already logged into Plesk with the administrative account.
The following error appears on the Plesk GUI login page:

PLESK_ERROR: Error: Unable to log you on. Another user with the same username (admin) is already logged in to Plesk.

Allow multiple sessions under administrator's account option is disabled.

Click on a section to expand

If Plesk GUI access is still possible for a user that is logged in as the Plesk administrator

1. Log into the Plesk GUI as the main admin user for Plesk

2. On the top right of the Plesk interface, press on the name of the user (Administrator in this example) and select Edit Profile

3. Check the box for Allow multiple sessions under administrator's account

4. Scroll down and press Apply

If Plesk GUI access is not available and only SSH or RDP access to the server is available

Connect to the server via SSH / RDP.

Note: if direct SSH/RDP access to the server is not possible, contact server administrator for further assistance.
Run the command below:

# plesk bin admin -u -multiple-sessions true