Warning in Plesk interface: Another user with the same username (admin) is already logged in to Plesk

Symptoms

• The following warning is shown after login into Plesk:

  Another user with the same username (admin) is already logged in to Plesk.

Cause

This behavior is expected if Profile & Preferences > Allow multiple sessions under this account option is enabled and several logins to Plesk UI were performed:

Resolution

If it is required to disable multiple sessions perform the following steps:

1. Log into Plesk.
2. Go to Profile & Preferences > disable Allow multiple sessions under this account:

   

Warning: Disabling mentioned option may cause issue described in this article .