KB40987 - User unable to login due to realm due to user limit restriction with the message "Login failed. Reason: Max Session Per User" in the user access log

This article describes about the issue where the user is not able to login to PCS device with error message "Login failed. Reason: Max Session Per User" in the user access log.

When users attempt to login, the following error message will appear:

Exceeded maximum concurrent sessions for your user account. Please contact your system administrator.

The following entry will appear in the user access log:

Info    AUT23457    2017-09-27 17:07:35 - ive - [10.9.43.22] raj(raj)[raj] - 
Login failed. Reason: Max Session Per User

This issue occurs when all conditions are met: 

1. Multiple user sessions is enabled on the device (under Authentication > Signing In > Sign-in Policies > checkbox for Enable multiple user session)
2. User has exceeded the configured user realm limit restriction (under Users > User Realm > Authentication Policy > Limits) 

To confirm the configured user realm limit, perform the following steps:

1. Login to admin console
2. Navigate to Authentication > Signing In > Sign-in Policies
3. Confirm if the checkbox for Enable multiple user sessions is enabled

4. Navigate to Users > User Realm > Authentication Policy > Limits 
5. Confirm the value configured next to Maximum number of sessions per user