Microsoft 365 & Collaboration
Entra ID / Conditional Access lockouts, Azure AD Connect sync failures, Teams connectivity, Intune enrollment, and Microsoft 365 Backup restore operations.
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Locked out by Conditional AccessA Conditional Access policy is blocking everyone — including admins. Recover via break-glass, then disable the offending policy, then investigate cause.
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Azure AD Connect Export Error 8344: Insufficient Access Rights on AD Connector AccountDuring Azure AD Connect synchronization, export operations fail with error code 8344 ('Insufficient access rights to perform the operation') when the AD DS connector account (MSOL_ or ADSync account)…
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Microsoft Teams Meeting — Audio, Video, Camera, and Screen-Share Failures (Device, Driver, Permission, Network)Teams users may lose one or more real-time communication modalities — audio (no sound, one-way, echo), video/camera (black screen, device not listed), or screen share (blank/grey share, permission de…
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Intune compliance / enrolment failureDevices fail to enrol, drop out of compliance, or refuse company resource access. Intune diagnostics span Windows, Autopilot, OEM and Entra.
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Granular File and Folder Restore from Microsoft 365 Backup (SharePoint/OneDrive)Microsoft 365 Backup supports granular restore of individual files and folders from SharePoint and OneDrive as of late April 2026, allowing administrators to recover specific items from a backup snap…
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Entra ID / Microsoft 365 Authentication Prompt Loop — WAM BrokerPlugin Corruption (Error 1001)Users on Windows 10/11 Enterprise experience persistent authentication loops when launching Outlook, Teams, or Excel, with sign-in appearing to complete but tokens failing to cache, producing error c…
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Entra ID / Microsoft 365 Authentication Prompt Loops — WAM BrokerPlugin Corruption (Error 1001)Users on Windows 10/11 Enterprise experience persistent authentication loops when launching Outlook, Teams, or Excel, with sign-in attempts failing to cache credentials and generating error code 1001…
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Authentication Failures — Windows Hello, MSA Prompts, and Entra ID Join/Hybrid-Join IssuesWindows endpoints fail to complete Azure Entra ID join, hybrid join, or Windows Hello for Business provisioning, manifesting as repeated credential prompts, devices stuck in 'Pending' registration st…
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OneDrive Sync Errors — Missing Files, Duplicate Conflict Copies, and Stuck Uploads (Windows / macOS)OneDrive for Business and personal OneDrive sync clients enter broken sync states manifesting as failed uploads, missing files, conflict-suffix duplicates, or persistent 'Syncing' badges that never r…
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Microsoft Outlook Connection Failures, Slow Sync, and Missing Emails — Profile, OST, and Cached Mode IssuesOutlook desktop clients fail to connect to Exchange or Microsoft 365, synchronize mail slowly, or display missing emails due to corrupted profiles, OST file corruption, Cached Exchange Mode misconfig…
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Microsoft 365 Tenant-Wide Service Health Incident — Platform Outage Affecting All UsersA tenant-wide Microsoft 365 service health incident is a platform-level outage or degradation affecting one or more M365 services (Exchange Online, Teams, SharePoint Online) across an entire tenant.…
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Microsoft 365 Licence Assignment and Service Plan Enablement Failures — Conflicts, Dependencies, and Provisioning ErrorsMicrosoft 365 licence assignment failures occur when licences cannot be assigned to users or when specific service plans within a licence fail to provision correctly. Common causes include conflictin…
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SharePoint Access Denied — Broken Permission Inheritance, Group Sync Lag, or Sharing Policy MisconfigurationUsers receive 'Access Denied' or 'Request Access' prompts when accessing SharePoint sites, libraries, or items despite appearing to have correct permissions. Root causes include broken permission inh…
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Entra ID MFA Failures — Lost Device Recovery, Repeated Prompt Loops, and Microsoft Authenticator MalfunctionsMulti-Factor Authentication failures in Microsoft Entra ID manifest as complete lockout after phone loss, persistent MFA re-prompting despite successful authentication, or Microsoft Authenticator pus…
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Outlook & Teams Sign-in Loops, Cache Corruption, and Autodiscover Failures on Microsoft 365 ClientsMicrosoft 365 desktop clients (Outlook 2016–365, Teams Classic and New) fail with repeated credential prompts, stuck loading screens, missing shared mailboxes, or calendar/chat sync failures. Root ca…