OneDrive Sync Reports Missing Devices From Intune

When you check the OneDrive sync status in the Microsoft 365 admin center, you might see devices listed as missing from Intune. This means the device is syncing files but is not recognized as compliant or managed by Microsoft Intune. The root cause is often a broken or incomplete device enrollment, an expired certificate, or a stale device record in Intune. This article explains why OneDrive reports devices as missing from Intune and provides the exact steps to resolve the issue.

Why OneDrive Reports Devices as Missing From Intune

OneDrive sync status reports rely on device identity data from Microsoft Intune. When a device is enrolled in Intune, it receives a unique device ID and a management certificate. This certificate is used to verify the device during sync operations. If the certificate expires, the device record is deleted from Intune, or the enrollment token is revoked, OneDrive cannot confirm the device is managed. The sync report then marks the device as missing from Intune.

Several scenarios cause this mismatch:

Stale Device Records in Intune

When a device is reset, reimaged, or replaced, the old device record remains in Intune. If the user signs in to OneDrive on the new device, Intune may not update the record automatically. The new device appears as missing because the sync report still references the old device GUID.

Expired or Missing Management Certificate

The device certificate used for Intune enrollment has a validity period. If the certificate expires and the device does not renew it, OneDrive cannot authenticate the device as managed. This happens when the device is offline for an extended period or when the Intune connector fails to renew the certificate.

Broken Work or School Account Connection

The Windows work or school account link can become corrupted after a Windows update, a domain join change, or a manual disconnect. When the link is broken, the device is no longer recognized as enrolled in Intune, even if OneDrive continues to sync.

Steps to Reconnect the Device to Intune and Fix the Sync Report

Follow these steps in order. Each step addresses a specific layer of the device-to-Intune connection. Do not skip steps unless the issue is resolved earlier.

1. Verify the device in Intune
   Sign in to the Microsoft Intune admin center at https://intune.microsoft.com. Go to Devices > All devices. Search for the device name. Check the Enrolled column. If the device is not listed, it was never enrolled or the record was deleted. If the device is listed but the Last check-in time is older than 7 days, the device is not communicating with Intune.
2. Check the work or school account connection on Windows
   On the affected device, open Windows Settings by pressing Windows key + I. Go to Accounts > Access work or school. Look for the account connected to your Microsoft 365 tenant. If the account shows Disconnected or Error, click Disconnect and confirm. Then click Connect and sign in with the same work or school account. This re-enrolls the device in Intune.
3. Unlink and relink OneDrive
   Right-click the OneDrive cloud icon in the system tray. Select Settings. Go to the Account tab. Under Your account, click Unlink this PC. Confirm the unlinking. OneDrive will close and reopen. Sign in again with your work or school account. This refreshes the device identity that OneDrive reports to the sync service.
4. Force a device sync with Intune
   Open Windows Settings > Accounts > Access work or school. Click the connected account and select Info. Under Device sync, click Sync. This forces the device to check in with Intune immediately. Wait 5 minutes, then refresh the Intune admin center to confirm the device check-in time updates.
5. Remove stale device records from Intune
   In the Intune admin center, go to Devices > All devices. Select any device record that matches an old or replaced device. Click Delete. Confirm the deletion. This prevents the sync report from referencing outdated device GUIDs.
6. Verify the OneDrive sync report
   Go to the Microsoft 365 admin center at https://admin.microsoft.com. Navigate to Health > OneDrive sync > Device status. Confirm the device now shows as Managed with a green checkmark. If the status still shows Missing from Intune, wait 24 hours for the report to refresh.

If OneDrive Still Reports Missing Devices After the Main Fix

OneDrive Sync Report Shows the Device as Unmanaged

If the device is enrolled in Intune but the sync report still says unmanaged, the issue may be a tenant-level policy. Check the Microsoft 365 admin center > Settings > Org settings > OneDrive > Sync. Ensure the option Allow syncing only on PCs joined to specific domains is not blocking your device. If it is enabled, add the device domain to the allowed list.

Device Enrollment Fails After Reconnecting the Account

If the work or school account reconnection does not enroll the device in Intune, the device may have a pending Windows update. Open Windows Settings > Windows Update and install all pending updates. Restart the device and repeat the enrollment steps. If enrollment still fails, run the dsregcmd.exe /status command in an elevated Command Prompt. Look for AzureAdJoined : YES and DomainJoined : YES. If either is NO, the device is not properly joined to Azure AD or your on-premises domain.

Multiple Devices With the Same Name in Intune

If multiple devices share the same hostname, Intune may associate the wrong device record with the OneDrive sync report. Rename the device in Windows Settings > System > About > Rename this PC. Restart the device and re-enroll it in Intune. The sync report will then show the correct device GUID.

Device Enrollment Status vs OneDrive Sync Status: Key Differences

Item	Intune Enrollment Status	OneDrive Sync Report Status
Definition	Indicates whether the device is registered and managed by Microsoft Intune	Indicates whether the device is recognized as managed during OneDrive sync operations
Data source	Direct device check-in with Intune service	Device identity reported by OneDrive sync client to Microsoft 365 admin center
Update frequency	Every 8 hours by default	Every 24 hours by default
Common failure	Device not enrolled, certificate expired, or user not licensed	Stale device record, broken account link, or delayed sync report refresh
Fix location	Intune admin center and Windows Settings	OneDrive Settings and Microsoft 365 admin center

You can now identify why OneDrive sync reports a device as missing from Intune and apply the correct fix. Start by checking the device in the Intune admin center, then disconnect and reconnect the work or school account on Windows. After unlinking and relinking OneDrive, force a device sync to refresh the relationship. As an advanced tip, use the dsregcmd.exe /status command to validate Azure AD join status before troubleshooting further.