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Support Article

Unable to log in to the application through SSO URL



Unable to log in to the application through the Single Sign-On (SSO) URL.

Error Messages

The Current Session is blocked as the maximum number of active session is reached.

Steps to Reproduce

Log in to the Pega application through the SSO URL with valid credentials.

Root Cause

Active User sessions are present in the cluster due to which users are unable to log in. This is because of an unstable cluster (that is, nodes coming in and/or going out frequently).


Perform the following local-change:

Perform a complete cluster restart(stop all the nodes altogether and restart them one by one) instead of a Rolling restart, to clear the incorrect active User session data from the cluster.
Suggest Edit

Published April 18, 2020 - Updated December 2, 2021

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