Figured out the issue:
In the config profile menu in Jamf pro for macOS there is a drop-down menu to select the cert, that option is missing on the Mobile Device config profile menu, screenshots below. Our network guy added our SecureW2 cert for the Jamf connection into our ISE server and the iPad immediately connected.
Here is the option I am referring to in the Computers config profile menu for Networks:

And here it the mobile device WiFi config menu with the dropdown missing:

The certificate, WiFi settings, and SCEP settings are all in the same profile and setup exactly like our computer profile. This is the only difference I can find and it is included in SecureW2s instructions.
If you have this problem, upload the cert to your ISE, or equivalent, server so your server makes the trust connection in lieu of the missing setting .
Figured out the issue:
In the config profile menu in Jamf pro for macOS there is a drop-down menu to select the cert, that option is missing on the Mobile Device config profile menu, screenshots below. Our network guy added our SecureW2 cert for the Jamf connection into our ISE server and the iPad immediately connected.
Here is the option I am referring to in the Computers config profile menu for Networks:

And here it the mobile device WiFi config menu with the dropdown missing:

The certificate, WiFi settings, and SCEP settings are all in the same profile and setup exactly like our computer profile. This is the only difference I can find and it is included in SecureW2s instructions.
If you have this problem, upload the cert to your ISE, or equivalent, server so your server makes the trust connection in lieu of the missing setting .
Hello, we are looking at implementing this too and testing soon with SecureW2, when you setup the external CA with the SCEP Proxy settings and uploaded the Change Signing and CA Certificates, does this affect the Jamf Pro built-in CA? We use the built-in Jamf Pro CA for enrollment and don't want to change that. Did this external CA cause you to have to re-enroll all your devices?