“Profile installation failed. Network connection was lost” Apple MDM

Hi,

I am getting an error when trying to enrol a few of our Macbooks on our Apple MDM server, I'm getting “Profile installation failed. Network connection was lost”.

90% of the Macbooks enrol fine, but there are a few that keep getting this message.

I think this is an error with the Macbook as I tried to enrol them on a test MDM server and got the same error.

I can't for the life of me figure out why, the times are all correct, and they are all patched to the same version, I have tried without a firewall enabled and on an internal and external line, but still the same error.

The MDM is Apple's MDM running on Apple server, I only need them to run for another 6 months before I can move them all to Jamf.

Any ideas on what i am missing?