Error 0x8018002b: Auto MDM Enrollment Failed
Auto MDM Enroll: Failed (Unknown Win32 Error code: 0x8018002b)
Error Details
| Property | Value |
|---|---|
| Error Code (Hex) | 0x8018002b |
| Error Code (Dec) | -2145648597 |
| Event ID | 76 |
| Event Source | DeviceManagement-Enterprise-Diagnostics-Provider |
Description
This error occurs during automatic MDM enrollment of Windows 10 devices through Group Policy. It typically appears in Task Scheduler under Microsoft > Windows > EnterpriseMgmt and is logged in Event Viewer. The error commonly relates to UPN domain issues or MDM scope configuration.
Common Causes
UPN Configuration Issues
Enrollment failures often stem from UPN domain problems. UPN might contain unverified domains. Non-routable domains (like .local) could be in use. Domain verification status might be incomplete. Understanding UPN requirements is crucial for successful auto-enrollment.
🔒 MDM Scope Configuration
Scope-related complications can prevent automatic enrollment. MDM user scope might be set to None. Group assignments could be missing or incorrect. Scope settings might not align with enrollment requirements. These configuration factors require systematic verification and correction.
Resolution Steps
1️⃣ Option A: Fix UPN Domain
If using unverified/non-routable domain:
- Open Active Directory Users and Computers (dsa.msc)
- Navigate to Users under your domain
- For single user:
- Right-click user > Properties
- On Account tab, select valid UPN suffix
- Click OK
- For multiple users:
- Select users > Action menu > Properties
- On Account tab, check UPN suffix
- Select valid suffix
- Click OK
- Force synchronization:
Import-Module ADSync
Start-ADSyncSyncCycle -PolicyType Delta
2️⃣ Option B: Configure MDM Scope
If MDM scope is incorrect:
- Sign in to Azure portal
- Navigate to Microsoft Entra ID
- Select Mobility (MDM and MAM)
- Click Microsoft Intune
- Configure MDM user scope:
- Set to "All" for universal access
- Or set to "Some" and select specific groups
- Set MAM User scope to None
- Save changes
3️⃣ Verification
After implementing changes:
- Allow time for synchronization
- Check Event Viewer for new attempts
- Monitor Task Scheduler results
- Verify successful enrollment
Best Practices
👨💻 For IT Administrators
Effective auto-enrollment requires attention to UPN and scope configuration. Implement comprehensive domain verification monitoring. Maintain documentation of UPN requirements. Develop clear procedures for domain management. Create systematic approaches to enrollment verification. Consider implementing automated monitoring.
🔄 For Configuration Management
Successful enrollment requires proper domain and scope setup. Develop clear processes for UPN management. Maintain accurate documentation of domain requirements. Implement thorough testing procedures for enrollment. Create comprehensive documentation of configuration steps.
Troubleshooting Tips
When addressing auto-enrollment issues, focus on both UPN and scope settings. Verify domain routing capability. Check MDM scope configuration. Test enrollment after changes. Monitor synchronization completion.
Domain management involves several factors. Synchronization needs time to complete. Multiple users may need updates. Consider using Alternate Login ID if needed. Monitor enrollment success rates.
Additional Notes
💡 Check UPN configuration
🔒 Verify MDM scope settings
⚠️ Allow sync completion
👥 Monitor enrollment status
Related Links
Configuration Guide
-
Domain Assessment
- Check UPN configuration
- Verify domain routing
- Review sync status
- Document settings
-
Scope Configuration
- Set MDM scope
- Configure user access
- Update group assignments
- Verify changes
-
Enrollment Validation
- Monitor Event Viewer
- Check Task Scheduler
- Test auto-enrollment
- Document results
Maintain proper UPN configuration and MDM scope settings, ensuring regular verification of domain routing and synchronization status.