DNA Center and ISE integration fails on Connecting to pxGrid

[bjohnson04]

My DNACenter and ISE integration is failing on step 4 - Connecting to pxGrid

The error is - Failed to connect to ISE node - invalid certificate received from ISE. Note: This might be due to Certificate Authority being disabled on ISE. Please check

DNA version is 2.2.3.5

ISE version is 3.0.0.458

Im pretty sure i've looked to make sure Certificate Authority is not disabled on ISE.

[Flavio Miranda]

I case you did not see this guide before:

https://community.cisco.com/t5/networking-documents/how-to-cisco-dna-center-ise-integration/ta-p/3896410 

[Sylvain_Che]

Hi @bjohnson04,

Make sure your PXgrid certificate on ISE is signed by ISE internal CA, and not signed from your PKI/external CA. Then retry the integration.

This was a culprit I faced a few times already.

Regards,

Sylvain.