KB40655 - "Reason: Wrong Certificate::unsupported certificate purpose" when authenticate to the Pulse Connect Secure (PCS) device

This article describes an issue end user are unable to authenticate to the PCS device which results in the message of "Reason: Wrong Certificate::unsupported certificate purpose" in the access log.

When end user attempt to authenticate to the Pulse Connect Secure (PCS) device utilizing a client certificate, the following error message will appear in the access log:

Reason: Wrong Certificate::unsupported certificate purpose

This error occurs due to the client certificate is missing the Key Usage of Digital Signature.

To resolve this issue, obtain a client certificate with the key usage of Digital Signature.