Preparing your device for mobile management fails

Tavin Head 21 Reputation points
2021-07-23T17:58:45.343+00:00

Hello,

We are having trouble while enrolling devices through Azure. It will get stuck at "Preparing your device for mobile management" for about half an hour until it times out, along with error code 0x800705b4. For preface, we were able to enroll dozens of devices daily without issue before this point, but this issue only started today, and the error persists on Lenovo, Dell, and Acer devices.

Fixes we have tried to no avail:

  1. Setting time zone to both local area and Pacific Time.
  2. TPM chip reset.
  3. Disabling TPM chip.

Any help or ideas would be appreciated.

Microsoft Intune Enrollment
Microsoft Intune Enrollment
Microsoft Intune: A Microsoft cloud-based management solution that offers mobile device management, mobile application management, and PC management capabilities.Enrollment: The process of requesting, receiving, and installing a certificate.
1,259 questions
Microsoft Intune
Microsoft Intune
A Microsoft cloud-based management solution that offers mobile device management, mobile application management, and PC management capabilities.
4,410 questions
Accepted answer
  1. Jarvis Sun-MSFT 10,091 Reputation points Microsoft Vendor
    2021-07-26T06:54:49.233+00:00

    @TavinHead-7729Thanks for posting in our Q&A.
    For our issue, we can try Michael Niehaus's script to see the information about what went on during our Autopilot provisioning process. check the event in the process to see if there's any finding.
    https://oofhours.com/2020/07/12/windows-autopilot-diagnostics-digging-deeper/
    Note: Non-Microsoft link, just for the reference.

    If the response is helpful, please click "Accept Answer" and upvote it.
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  1. Tavin Head 21 Reputation points
    2021-07-26T15:46:45.353+00:00

    @Jarvis Sun-MSFT Here is the output from the script. Sorry for the delay, but it seems we were unable to download NuGet at the main site, but download it on another network.

    117983-microsoftteams-image.png

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  2. Tavin Head 21 Reputation points
    2021-07-26T16:38:06.91+00:00

    And now that we are on another network, we are able to get past the mobile management step and fully setup the computer, so we are being affected by something on that network, maybe firewall the firewall, but we have not been able to diagnose the difference. And it is still especially odd because we were able to re-image fine on the same ports the previous day.