I get this error message “Public Cloud Server certificate validation failed. Dest Addr: wildfire.paloaltonetworks.com, Reason: self signed certificate in certificate chain”. Kindly help me resolve the issue.
Try to disable the checkbox at "validate update server identity" and mark the root cert that you use of decryption as trusted root certificate. Not sure if this really works because the actual solution was already posted by @BPry. For this step you don't need to disable TLS decryption comoletely, just configure an exception for your firewall mgmt IP to wildfire.paloaltonetworks.com.
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