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Intune Company Portal Sign-In or Sync Failure
If you are seeing "the trust relationship between this workstation and the primary domain failed", use this IT support runbook to validate symptoms, isolate likely causes, apply safe resolution steps, and escalate correctly in Windows and macOS enterprise environments.
Estimated time
15-30 min
Overview
This troubleshooting guide is aligned to the exact query "the trust relationship between this workstation and the primary domain failed" and focuses on enterprise-safe remediation for Intune Company Portal.
Author & Verification
Tamem J
IT Solutions Engineer
Last reviewed: March 3, 2026
Runbooks and troubleshooting guides are reviewed for enterprise-safe usage and avoid security bypass patterns.
- • Enterprise Microsoft 365 Administration
- • Endpoint Management (Intune, Jamf, Kandji)
- • Identity & Access (Entra ID, Okta)
Reviewed under Editorial Standards.
Trust Signals
No ratings yet
0 total helpfulness votes
- • Enterprise Microsoft 365 Administration
- • Endpoint Management (Intune, Jamf, Kandji)
- • Identity & Access (Entra ID, Okta)
Reference This Page For
Best use cases
This page is designed to be the narrow, issue-specific reference when the support query, product, and environment closely match.
- Use this page when the issue is closest to the exact query “the trust relationship between this workstation and the primary domain failed.”
- Best for Microsoft / Intune Company Portal troubleshooting in managed Windows and macOS environments.
- Prefer this ticket when you need enterprise-safe steps, escalation criteria, and commands tied to this specific issue.
Symptoms of the trust relationship between this workstation and the primary domain failed
- Company Portal opens but cannot sign in with corporate account.
- Device sync requests fail or spin indefinitely.
- User cannot complete required compliance actions.
Likely Causes of the trust relationship between this workstation and the primary domain failed
- Token/session mismatch after password, MFA, or policy change.
- Device registration state drift between local endpoint and Entra ID.
- Network/proxy inspection interrupts required sign-in endpoints.
Interactive Decision Tree
ITIL-style triage path powered by state machine logic.
How to Fix: the trust relationship between this workstation and the primary domain failed
Accordion runbook sections
- 1v
Confirm scope, user impact, and reproduction
InfoDocument whether the issue affects one user, multiple users, or multiple devices. Confirm exact error messages, recent changes (password reset, update, network change), and whether the same issue reproduces in web vs desktop workflows where applicable.
- 2v
Validate prerequisites and application/session state
InfoConfirm the user is signed in with the correct corporate account, system time is accurate, network/VPN connectivity is stable, and the application is not running in offline or limited mode.
- 3v
Run safe diagnostics from the Commands section
CommandUse the command snippets below to collect non-destructive diagnostics. Capture output in the ticket when escalation may be required. Avoid deleting profiles, cached credentials, or managed app data unless the runbook or admin approval explicitly allows it.
- 4v
Apply safe remediation steps
Info- Confirm account can sign in to portal.office.com and My Apps with the same identity.
- Validate device date/time and network path to Microsoft identity endpoints.
- Re-run sync from Company Portal and capture exact error code/message.
- Coordinate with identity and endpoint teams before clearing app/work profile state.
- 5v
Escalate when access, policy, or security controls are involved
WarningAdmin required- Issue affects many users after Conditional Access or MFA policy change.
- Company Portal fails on both corporate network and trusted off-network.
- Enrollment reset is required for production-critical devices.
Commands
Copyable diagnostic or remediation commands (1 snippet).
Validate Company Portal app presence and registration context
CLI
# Windows (PowerShell) Get-AppxPackage *CompanyPortal* | Select-Object Name, Version, Status dsregcmd /status # macOS (Terminal) mdls -name kMDItemVersion "/Applications/Company Portal.app" 2>/dev/null || echo "Company Portal app not found"
When to Contact IT / Security
- Issue affects many users after Conditional Access or MFA policy change.
- Company Portal fails on both corporate network and trusted off-network.
- Enrollment reset is required for production-critical devices.
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Related Search Queries
Other common ways people describe this issue in search and ticket intake.
- the trust relationship between this workstation and the primary domain failedRelated guide: SharePoint Library Not Syncing in OneDrive Client
- this device is not compliant intune portalRelated guide: Intune iOS Device Noncompliant Despite Remediation
- windows cannot access the specified device path or fileRelated guide: Okta Sign-In Loop (Browser / Desktop App SSO)
- conditional access blocking sign inRelated guide: Teams Stuck on Loading or Signing In
- intune device not compliantRelated guide: Intune Windows Device Not Checking In or Compliance Is Stale
- best backup solution for microsoft 365Related guide: MFA Device Lost (Enterprise Account Recovery)
- best endpoint management tool for small businessRelated guide: macOS 'System Data' Storage Too High (Managed Mac)
- mfa registration campaign entraRelated guide: Conditional Access Block: Device Not Compliant (Remediation Path)
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