The customer is getting the following message after creating his MDM certificate.
Profile installation failed.
A secure connection to the server "https://<mymdmserver.sgn.mydomain>.net/scep" cannot be made.
He updated server, intermediate and APNS certificate and created the enroll link as described on our documentation.
ITMS 8.6 RU2
They have an invalid server certificate. Make sure the correct server name is used.
In this example:
Main documentation on MDM can be found here:
About Modern Device Management