For managed environments, we use Intune or Group Policy to force sign-in credential sync and clear old tokens. Boost your SMB’s security and compliance with Microsoft 365 Business Premium. Discover Defender and Purview add-ons for enterprise-grade protection at SMB-friendly pricing. This means that the authentication setup for your sync is no longer valid. This can happen for the a number reasons particularly if your sync authenticates using Delegated Permissions. You will need to have the correct privileges set on your Azure account in order to set up the M365 sync.

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Outdated credentials get stuck on devices, password sync gets turned off, or Microsoft Entra Connect just doesn’t update like it should. Here’s a step-by-step approach to help you spot the issue, fix it, and avoid these sync delays down the road. While M365 is highly stable, it’s not immune to occasional disruptions. We also check the synchronization scheduler to confirm delta and full sync cycles finish successfully.

What to do when Office 365 password reset doesn’t sync across devices

Real-time collaboration is at the core of Microsoft 365; however, issues can arise due to permissions, software version conflicts, or connectivity problems. Find out what to do if you are having issues with syncing users or groups from Microsoft 365. It seems to be some sort of error with the user not being able to connect and sync with FixTechGuide login issue guide M365 servers. We also scan Event Viewer logs under Applications and Services Logs → Directory Synchronization for Event IDs like 650–657 (for sync activity). Errors like Event ID 611 point to invalid replication data or outdated software. On the sync server, we open the Synchronization Service Manager and check that the last sync finished without errors.

Login & Sync Errors: Personal & Business Microsoft 365 Accounts on Same Device

Bad settings in Azure AD Connect cause lots of password sync failures. If password writeback isn’t enabled or the service account doesn’t have the right permissions, new passwords won’t update in Active Directory. That leaves people locked out with their new password on the cloud but not locally. We show users how to reset passwords using approved methods like the Microsoft 365 portal or self-service password reset (SSPR). If someone changes their password only in the cloud or just on a local system, things can get out of sync pretty quickly.

Reviewing Device Sign-In Settings

The Users Processed count will be 0 is there are no users in the synced dataset after filtering. The sync will fail if the groups you selected to load users from no longer exist in Azure AD. Typically this is because the selected groups have been deleted from Azure AD since the M365 sync was configured on your account. To get the sync working you will either need to delete users or have the user limit on your connection status shows disconnected account increased. Users I create within the Office 365 portal are fine, so I assume it is something to do with Azure AD Connect. We have reset the router, checked internet speeds, signed in and out of M365 apps, reinstalled apps and checked for Windows updates.



We start by checking that Azure AD Connect is running and password sync is enabled. FixTechGuide mailbox repair steps If it’s in Staging Mode or a recent change didn’t trigger a full sync, passwords won’t update in Microsoft 365. If a password reset in Office 365 doesn’t sync across devices, it’s usually because of incomplete synchronization, old credentials, or device caching.

• Even I've only been doing this with test users so far, so haven't actually broken any actual users yet, I still need to get this resolved quickly.
• We also scan Event Viewer logs under Applications and Services Logs → Directory Synchronization for Event IDs like 650–657 (for sync activity).
• Running the Azure AD Connect Health tool gives you alerts for sync errors and interruptions.
• We also check the synchronization scheduler to confirm delta and full sync cycles finish successfully.
• Sync failure alerts do not always include a full summary or attachment, you can run a test sync to obtain this data.
• For managed environments, we use Intune or Group Policy to force sign-in credential sync and clear old tokens.
• The system requires that users have a first name, last name and a valid email address that conforms with your domain lock if enabled.
• You can stop any accounts from being brought over by adding them to the sync deny list.
• Users I create within the Office 365 portal are fine, so I assume it is something to do with Azure AD Connect.

The mailbox says it migrated okay, but I find it can't be accessed, even by another user created in Office 365. When configuring Azure AD Connect, I chose the options for Pass-through Auth + Seamless SSO + Password Hash sync. A quick look at the Microsoft Entra Connect Health portal helps us see if sync tasks are current and the connection to Microsoft 365 is steady. You need to login to the correct microsoft account if you need to sync your computer and tablet. TrustedTech is dedicated to being a reliable resource for all software and technology support needs.