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Unable to access to Plesk under admin: Another user with the same username (admin) is already logged in to Plesk

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Yulia Plokhotnikova
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Plesk for Windows Plesk for Linux kb: technical ABT: Group A

Applicable to:

  • Plesk for Linux
  • Plesk for Windows

Symptoms

Unable to log into Plesk with administrative account. A following warning appears:

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

Cause

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

Resolution

  1. Connect to the server using SSH /  via RDP;

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

  2. Run the command below: 

    # plesk bin admin -u -multiple-sessions true

Comments

2 comments

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    Trilema Internet

    Doesn't worked to me. I had to restart the server.

    I am using Windows and Plesk Onyx 17.5.3

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    Vitaly Zhidkov

    @Trilema, this means that someone has logged in as soon as service was restarted

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