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Support Article

Concurrent login prevention



User want to know if there is any foolproof mechanism available to prevent concurrent logins to the application.

One of the solutions is setting pyConcurrentSessions to "none" but this works only in single node environment and however if the browser is closed accidentally(or if it crashes) then the user is unable to log back in.

Error Messages

Not Applicable

Steps to Reproduce

1) Open two separate browser instances.
2) Log into Pega, each browser instance. Pega does not prevent the user from login.

Root Cause

Not Applicable


This issue has been fixed in Pega 7.3 version where it supports multi node environment and user can login again if browser gets crashed or closed accidentally.

For reference go through this article:

Published April 12, 2017 - Updated October 8, 2020

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