Recently we've had a few Windows devices that have failed to fully enroll in Sophos Mobile. Windows will recognize that they are connected to the Sophos MDM, but will fail to sync with the Sophos Server and will appear as un-managed and non-compliant as a result. The status within the Sophos Admin Center will show the device as "enrolling" (when hovering over the red-X), but won't fully complete the enrollment process. I have tried removing the MDM from within Windows Settings, deleting the device from within the admin panel, and then re-enrolling the device though that doesn't fix the issue. In some cases, Windows refuses to remove the MDM from within settings.