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

Dmitry Bystrov

6 months ago

Symptoms

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:
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

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

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

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