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.
Comments
3 comments
Doesn't worked to me. I had to restart the server.
I am using Windows and Plesk Onyx 17.5.3
@Trilema, this means that someone has logged in as soon as service was restarted
Hello @Yulia ,
I keep getting this error for some time and although the solution you give works fine every time, I wonder whether what @Vitaly says is true.
Does it mean the system has been hacked and someone gained admin access to our Plesk admin account?
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