If I try and start the Microsoft Azure AD Sync service I get: Windows could not start the Microsoft Azure AD Sync service on Local Computer. The 'Microsoft Azure AD Sync' service is just stuck on starting. There is nothing else on the server. I added one more information to my question: when I try to start the service i get the following error: Erro 1053: The service did not respond to the start or control request in timely fashion. When I try it errors out New comments cannot be posted and votes cannot be cast. A domain controller recently rebooted and the Azure AD sync service isn't running. This post made my day. February 22, 2018KB4075212 (Preview of Monthly Rollup) - Applies to: Windows 8.1 Enterprise, There was a time it happend way to often. Here is the error I am getting from eventlog. Second Reddit post going on our KB for Azure issues. It's always DNS. Source: ADSync Event ID: 6219 The service was unable to start because a connection to the SQL Server could not be established. and the service is configured to run as DOMAINAME\AdSyncMSAxxxx. Welcome to another SpiceQuest! if this is a non-microsoft service, contact the service vendor, and refer to service-specific error code - 2145185792 I did so it's possible my path is the "original" v1 path still. Start the Synchronization Service Manager (START Synchronization Service). The best option is top upgrade to AD Connect 2.1.1.0 or higher. "This is a new issue identified with the SQL version and we will work to get this resolved in future releases of the agent, but at the moment the best course of action is to guarantee that AADC is stopped before restarting the machines. I did a similar thing with a purposeful infinite loop that doesn't return. Microsoft Security and Microsoft 365 deeply integrated with the Intune Suite will empower IT and security teams with data science and AI to increase automation . You - kind person - just saved me hours at 1am. Likely an update to the QB Database, as I suspect DNS Server ports haven't changed in a long. You could think it was caused by failed updates or such, but no. New comments cannot be posted and votes cannot be cast. Been dealing with this since around November and it happened a for a second time this week. This has been successful with no issues for the past six months. Much appreciated. Thank you! Youll be auto redirected in 1 second. Step 3 - Find the Log on as a service policy and select Add User or Group. Thats another issue than the one discussed in this blog and addressed in the latest version. Wow, thank you, thank you. This site uses Akismet to reduce spam. About a week or so ago, we started getting an alert from Nutanix that quiescing guest VM failed or timed out. Theoretically Correct vs Practical Notation, Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. Saving this post for future reference. The most dangerous time is when the AD Connect service restarts. For more information see SQL Server Books Online. Reported at line: 3714. Every one in a while, you get "the right guy" and I'm glad you did! Even worse, the AD Connect staging server suffers the same fate. on Press J to jump to the feed. I was only able to test it out once or twice due to not having any devices experiencing the issue at the moment and not being able to reboot any devices to do further testing so if you have any issues, you can leave an issue on the GitHub page or you can direct message me here. When I try to manually start the service, it starts without any errors. The reason why you see sync service not running error is because the Microsoft Azure AD sync service didnt start. Ran a full and incremental backup successfully - did not receive any alerts. I checked, but I found no log related to my service. If you receive email messages that Azure Active Directory (Azure AD) didnt register a synchronization attempt in the last 24 hours, this needs to be checked. If you run the service as another account or as a group Managed Service Account, change the account name in the service profile location above. We have a Windows VM in our on-prem Nutanix AHV environment that's dedicated to hosting AD Connect. Original KB number: 2995030. Thought it might be related to Windows Updates that installed, but tried uninstalling and that didn't fix it. You can read about it here. AAD Connect 2.1.1.0 (released 24-mar-2022) fixes this issue More specifically a DNS proxy policy on the firewall that prevented the sync from communicating. This is the default account to run the service. I haven't actually had the issue since upgrading from 1.x to 2.0.89.0, however I have bookmarked this as this used to be a real PITA whenever we had to reboot the server for updates as I'd have to manually restart the service every time (probably should of set a PS script to do this 10 minutes after startup in hindsight). . Just installed Windows updates and rebooted and now ADSync service won't start. However, we've had an issue similar to this with the QB database service. Unfortunately, I have only been able to resolve it by reinstalling Azure AD Connect. Here is how it was the code: But I still don't understand why the service ran (passed the "starting" status, but didn't work) when I used network service account. Refer: troubleshooting guide on In the pop-up dialog, select Connect to Active Directory . Create an account to follow your favorite communities and start taking part in conversations. The WorkingHardInIT blog is a non commercial blog where technical information is shared with the global community. Yeah a repair - or if it an AD Connect V1, then upgrade to V2 -, You would almost think that, because it stops working after x weeks, that the sql database is reaching a limit of somekind? See https://www.veeam.com/kb2911 but even with the trick to prevent the unloading of the user profileCOM+ application stops working when users logs off Windows Server | Microsoft Docs we could not get rid of the issue. Any suggestions? RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? Asking for help, clarification, or responding to other answers. Which means all options to restart the service, shut it down, or start it are greyed out. Solved it by calling a timer event directly only when Environment.UserInteractive. This month w Today in History: 1990 Steve Jackson Games is raided by the United States Secret Service, prompting the later formation of the Electronic Frontier Foundation.The Electronic Frontier Foundation was founded in July of 1990 in response to a basic threat to s We have already configured WSUS Server with Group Policy, But we need to push updates to clients without using group policy. Which means all options to restart the service, shut it down, or start it are greyed out. Cookies are used minimally where needed, which you can turn off at any time by modifying your internet browsers settings. And guess what, a couple of weeks later, it happens again. If I go into services, it's stuck on "Starting". Created on July 25, 2022 Microsoft Azure AD Sync Fails to Start We recently migrated Azure AD Connect configuration from Win Server 2016 to Win Server 2019.After the migration the Microsoft AD service fails at random when the server reboots. I have A domain Server , where Folder Redirection Policy Applied. The service was unable to start because a connection to the SQL Server could not be established. Because a domain group policy takes precedence over a local group policy, you need to check the settings for both types of group policies. Have you checked your firewall for any changes ?And that the sql instance your app is trying to connect to has started? The backup notices the issues with LocalDB before the AD Sync Service fails to start due to the problems. Right click Azure AD sync service and click Start. Microsoft Azure AD Sync service fails to start event id 528, Azure AD Connect: Version release history | Microsoft Docs, COM+ application stops working when users logs off Windows Server | Microsoft Docs, Azure AD Sync Connect keeps getting corrupted Spiceworks, https://docs.microsoft.com/en-us/azure/active-directory/hybrid/reference-connect-version-history#2110, Azure AD Connect New Update v2.1.1.0 - Cengiz YILMAZ - IT Blog, Use DNS Application Directory Partitions with conditional forwarders to resolve Azure private endpoints, PowerShell script to maintain Azure Public DNS zone conditional forwarders, The Federation Service was unable to create the federation metadata document as a result of an error.Document Path: /FederationMetadata/2007-06/FederationMetadata.xml, A WatchGuard Firebox M200 joins the home lab. After rolling them back one by one and rebooting, still no luck. We were pretty swamped with projects at the time so figured we would look into it in a few days when things started to calm down a bit. Copying the model dbs fixed the issue. Fast forward to a couple of days later, finally have time to look into it. YES! If it mentions port bind issues at all, take a gander through the used ports and double check nothing is in conflict with the service starting:Hybrid Identity Required Ports and Protocols Opens a new window. Search the forums for similar questions Well, a Veeam Vanguard turns to Veeam and restores the VM from a restore point that a recent known good AD Connect installation. I wound up calling O365 support and they determined that something had happened to the sync account and the only way to fix that is to uninstall/reinstall. Once you see the SQLLocalDB event ID 528 entries in the application logs when your Microsoft Azure AD Sync service fails to start, you can do the following. (Each task can be done at any time. Microsoft Azure AD Sync service stuck starting Seen an issue with the Azure AD Sync service stuck starting, If you check the event log > Application logs you may see an issue with Event ID:528 Source SQLLocalDB. It saved me hours of troubleshooting! Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The new Intune Suite can simplify our customers' endpoint management experience, improve their security posture, and keep people at the center with exceptional user experiences. Accept Answer and Upvote, if any of the above helped, this thread can help others in the community looking for remediation for similar issues. Didn't find what you were looking for? The source for both versions and the installer can be found here https://github.com/ADCTrevorRuppert/AD-Sync-Service-Repair/tree/master. I am having the same issue currently. More info about Internet Explorer and Microsoft Edge. 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