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iOS Acrobat Mobile Cannot Open SharePoint Files
Estimated time
10-20 min
Editorial Intro (SEO-Aligned)
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 Adobe Acrobat Reader (iOS).
Author & Verification
Tamem J
IT Solutions Engineer
Last verified: March 3, 2026
Runbooks and troubleshooting guides are reviewed for enterprise-safe usage and avoid security bypass patterns.
Trust Signals
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- • Enterprise Microsoft 365 Administration
- • Endpoint Management (Intune, Jamf, Kandji)
- • Identity & Access (Entra ID, Okta)
Symptoms of the trust relationship between this workstation and the primary domain failed
- PDF opens from SharePoint link but fails in Acrobat mobile.
- User sees repeated sign-in prompts between Microsoft and Adobe screens.
- Only some documents or libraries are affected.
Likely Causes of the trust relationship between this workstation and the primary domain failed
- SSO handoff/session mismatch between SharePoint and Acrobat app contexts.
- Conditional access/app protection policy requires compliant app route.
- File permission inheritance differs from user expectation.
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- Verify file opens in SharePoint web/mobile context first to isolate permission vs app issue.
- Confirm Acrobat and Microsoft apps are signed in with the same corporate identity.
- Capture failing library/document path and access timestamps for review.
- Escalate before suggesting account removal or unmanaged file export.
- 5v
Escalate when access, policy, or security controls are involved
WarningAdmin required- Policy exception or trusted app configuration changes are requested.
- Many users report the same open flow failure.
- Sensitive document access or rights-management controls are implicated.
Commands
Copyable diagnostic or remediation commands (1 snippet).
iPhone/iPad support checks (non-destructive)
CLI
# iOS (device UI) # Settings > General > About (capture iOS version + device name) # Settings > VPN / Device Management (confirm managed profile status) # Settings > [App] (confirm permissions enabled as required) # Capture timestamp + screenshot of the error for the ticket
When to Contact IT / Security
- Policy exception or trusted app configuration changes are requested.
- Many users report the same open flow failure.
- Sensitive document access or rights-management controls are implicated.
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Related Exact-Match Queries
Internal fix guides aligned to high-intent search phrases.
- the trust relationship between this workstation and the primary domain failedRelated guide: SharePoint Library Not Syncing in OneDrive Client
- we can't sign you in right now outlook mobileRelated guide: iOS Intune Company Portal Device Compliance Not Evaluating
- windows cannot access the specified device path or fileRelated guide: Okta Sign-In Loop (Browser / Desktop App SSO)
- there was a problem reaching this app azure enterprise appRelated guide: Teams Safe Cache Cleanup (Windows / macOS)
- conditional access blocking sign inRelated guide: Teams Stuck on Loading or Signing In
- you need permission to access this resource sharepointRelated guide: OneDrive: You Do Not Have Permission to Sync This Library
- sharepoint permission inheritance brokenRelated guide: SharePoint Access Denied (Site, Library, or File)
- this device is not compliant intune portalRelated guide: Intune iOS Device Noncompliant Despite Remediation
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