Duo health check failed: invalid_client: Invalid Client assertion: Token has expired
How to resolve error: Duo health check failed: invalid_client: Invalid Client assertion: Token has expired?
Overview: This article explains how to resolve the error "Duo health check failed: invalid_client: Invalid Client assertion: Token has expired" by correcting and synchronizing the time on the gateway server.

The above error is almost always caused by time mismatch on the gateway server. Run below command to check the server time
root@gateway:~# date
If the time time is not synced correct the server time
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