Hi,
Q1. Can the device resolve the FQDN of the SCEP server?
For testing I have defined a DNS entry to the wireless router and the iPAD is connect to the router. Performing a DNS lookup on the iPAD shows the FQDN to resolve correctly
Q2. Can the device resolve the FQDN of the MMS?
Yes
Q3. Did you correctly set the server override for HTTPS to the FQDN of the server over port 443?
No need as I have a public dns entry for the FQDN of the MMS
Q4. Is the MMS SS accessible on port 443 from the network the iOS device is using?
Yes
Q5. Is the SCEP server properly configured to reuse the certificate without expiration, so that the challenge enrollment password is static, and is configured properly in MMS?
Yes
Q6. Have you verified all settings for the SCEP profile match the SCEP certificate?
Yes
Q7. Is your APNS certificate in the proper format of com.apple.mgmt.* where * is whatever you want?
Yes
This was working properly on an internal network. The issues occurred since I have changed ip addresses to put the MDM server onto the internet.
Is there anything else I can try?
The version of Windows server 2008 is not on the service pack and therefore the other fix that is mentioned does not apply
Thanks
Mike