for G Suite / for Office 365
We have confirmed an issue where authentication discrepancies cause an installation error(*)
when you install a HENNGE Device Certificate using "IMEI" authentication. This happens on an iOS12 or later device that was powered-on without a SIM card inserted.
Profile Installation Failed
A connection to the server cloud not be established.
Please try the following workarounds to avoid this issue.
・Power on (or Reboot) your device with a SIM card inserted.
・Use UDID authentication
Once your device is powered on with a SIM card inserted, you will be able to install Device Certificates
even if you remove the SIM card.