microsoft azure ad sync service stuck starting

If all goes well, the Microsoft Azure AD Sync service is running, and you can synchronize to your hearts content. We have a DNS proxy policy on our firewall that filters dns requests. I just rebooted this server, then noticed that no syncs had been done for 2 hours. That fixes this cause for when Microsoft Azure AD Sync service fails to start event id 528. On Windows Server 2019 and Windows Server 2022 running AD Connect v2, I have been seeing an issue since October/November 2021 where Microsoft Azure AD Sync service fails to start event id 528. AD Connect hangs synchronizing local AD to Azure AD We are using latest Azure AD Connect tool (1.1.371.0) on WS2012R2 server (2CPU, 2GB RAM, Hyper-V virtual machine). But then it comes back. so, if you have any other suggestions, i'm all ears. They don't have to be completed on a certain holiday.) We only store the minimal data need for the shortest amount of time to be able to run the website and let you interact with it. On the left, select Azure Active Directory > Azure AD Connect. Making statements based on opinion; back them up with references or personal experience. This tool makes the integration easy and simplifies the management of your on-premises and cloud identity infrastructure. I had issues with v1 where (I think) it was starting before AD was starting. services-sync-not-start, Also ensure TLS 1.2 is enabled on the server where Azure AD Connect is installed.Run below poweshell command to enable TLS 1.2, Thank you for asking this question on the **Microsoft Q&A Platform. ", Are you using a dedicated service account? 'Failure Code = 0x80004005Minor Number = 2. Server is not found or not accessible. I come in the office this morning to find that the same alerts showed up over the weekend. Your daily dose of tech news, in brief. Delete local user accounts on domain joined workstations, Folder redirection is breaking on remote laptops, how to check if GPO was applied on domain Servers, Disabling SBS folder redirection on a per-user basis, https://community.spiceworks.com/topic/2129294-azure-adconnect-upgrade-status. I developed a http server via console application in C# and decided to turn it into a Windows service to be able to initialize it without the need to login the machine. Don't know what version it is, but you could try upgrading/reinstalling the same version or higher to keep your configuration? https://github.com/ADCTrevorRuppert/AD-Sync-Service-Repair/tree/master. We are having the same problem, but on a 2012 Server. So I cannot do anything. Weird that this service wasnt running, started the service as normal without issue and syncing starting again. Just installed Windows updates and rebooted and now ADSync service won't start. The service is set to login with account NT SERVICE\ADSync. You are very welcome. This forum has migrated to Microsoft Q&A. For more information review the system event log. on Press question mark to learn the rest of the keyboard shortcuts. In a few months synchronization has hanged 3-4 times. Click OK to close the application.Reported at line: 3714. 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. Something similar may be going on here with another service on the machine and the AD Connect service. Test it, make sure you understand what it does. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? C:\Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019 (Thanks TinyBerry2). Do click on "Mark as Answer" on the post that helps you, this can be beneficial to other community members. If solutions 1 and 2 don't resolve the issue, remove and then reinstall directory synchronization. You can try to increase the windows service timeout with a key in the registry, "ServicesPipeTimeout"=dword:300000 (300 seconds or 5 minutes). I have suffered quite a bit from that specific error. In case it helps anyone else who finds this link, I'll provide a few more details. NOTE: To answer you as quickly as possible, please mention me in your reply. Copying the model dbs fixed the issue. **. Welcome to another SpiceQuest! what if you are already on v2? Because I couldn't find the model.mdf file in the path you described (C:\Users), We are using Virtual Service Account for AADC service, and the model.mdf file is located in C:\Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019. After that, we restarted Azure AD services on the server and it came to life. The source for both versions and the installer can be found here https://github.com/ADCTrevorRuppert/AD-Sync-Service-Repair/tree/master. Step 3 - Find the Log on as a service policy and select Add User or Group. Search the forums for similar questions Reddit and its partners use cookies and similar technologies to provide you with a better experience. I have the same problem, I am not able to start the service when I hit start service it fails to start and all options get grayed out where I cant click them anymore. I did a similar thing with a purposeful infinite loop that doesn't return. After the reboot, AD Sync service is now stuck starting.just like the original VM. C:\Users\ADSyncxxxxx$\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019. Much appreciated. Well, happy to hear it helped you out. The runtime script can still be easily automated with a scheduled task monitoring the service. If you run in to this, do the following -, Copy the MODEL db and transaction log files from C:\Program Files\Microsoft SQL Server\150\LocalDB\Binn\Templates to either. In Azure AD Connect installation wizard, we use the express settings. Been dealing with this since around November and it happened a for a second time this week. Azure Events Our issue was unrelated to AD Connect, but many symptoms match this. Best practices and the latest news on Microsoft FastTrack, The employee experience platform to help people thrive at work, Expand your Azure partner-to-partner network, Bringing IT Pros together through In-Person & Virtual events. Worked like a charm ManThanks BIGTIME! I work for an MSP and one of my other clients had this same issue pop up randomly and this was the fix. VM didn't reboot, did not install updates, nothing. Uninstalling Azure AD Connect completely. In the past I uninstalled and reinstalled but the issue had came back. Under Actions, select Properties. On the On-premises provisioning agents screen, you see the agents you've installed. The Azure AD Connect Version is 2.1.15.0. We did try all the tricks from an issue a few years back with backing up AD Connect servers. The service was unable to start because a connection to the SQL Server could not be established. This is so much easier. Not the answer you're looking for? Check the Windows Application event log, it could contain some entries from your service's auto generated event source (which should have the same name of the service). Posted in KBs 4088787 and 4086510 were the 2 KBs that were installed today. rev2023.3.1.43269. The while-loop continued running until the queue was empty. My windows server is 2012, so I think the bug fix does not apply to case. The event log contains an error of 1000 for the miiserver.exe process with an exception code of 0xc0000135. Our synchronization between onpremise & Azure is stopped. 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. IMPORTANT UPDATE: Microsoft released Azure AD Connect 2.1.1.0 on March 24th 2022 which fixes the issue described in this blog post). Or, if you use Azure AD Sync, remove and then reinstall it. I checked, but I found no log related to my service. Lets see if Microsoft comes up with anything. You really saved my day! You can Accept Answer and Upvote, if the above response helped answer your query, others visiting the forum with the same query might get help. In my case I needed to Set User Rights Assignment permissions within Group Policy by adding the ADSync Service account to "Logon as a Service" For me it was a while loop that looked at an external queue. Hope this helps, But the application listens normally if i run it as a console application. First thing to try is a reboot. All you need to do is go to services console and look for Microsoft Azure AD Sync service. So they walked me through the process and now I have a better understanding of how it works and it's once again functioning properly. If you have encountered the same error in your setup, this post will help you to fix the issue. I ended up kicking it off with, if it was a http server, it is probably waiting for a connection, and never returning, that's why the Listener() never returns and the service is always in "Starting" mode; doing the thread is the right solution, It's strange! Press question mark to learn the rest of the keyboard shortcuts. I will explain the process here because I am sure some of you dont have a recent, good know backup. The content you requested has been removed. Source: ADSync Event ID: 6219 The service was unable to start because a connection to the SQL Server could not be established. More info about Internet Explorer and Microsoft Edge. Sure, you can always deploy new AD Connect servers, but that is a bit more involved, and as things are going, they might get corrupted as well. sign up to reply to this topic. To learn more, see our tips on writing great answers. The Azure Active Directory sync service is now running. Start -> Run or Start -> type services.msc and press Enter. 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. Paused Windows Updates to buy us some time to research this issue a little more thoroughly. To stop the service that will hang in starting you will need to reboot the host. Why does Jesus turn to the Father to forgive in Luke 23:34? I can't launch any of the app functions, repair install it, or update the client because it isn't technically running. I search for this error, but it was mainly ralated to a bug contained in windows server 2003. Once you are done testing replace Write-Host with write-output or turn it into a function and use cmdletbinding and param to gain write-verbose if you dont want all the output/feedback. https://www.reddit.com/r/sysadmin/comments/rxkd7m/has_your_azure_ad_connect_been_unable_to_start/. You may find the service is stuck starting over and over. 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. It's always DNS. "Windows could not start the Microsoft Azure AD Sync on Local Computer. If you are seeing this it could be the Sync DB has become damaged. thanks. Check if instance name is correct and if SQL Server is configured to allow remote connections. Create an account to follow your favorite communities and start taking part in conversations. Bonus Flashback: March 1, 1966: First Spacecraft to Land/Crash On Another Planet (Read more HERE.) 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. Visit Microsoft Q&A to post new questions. The event log contains an error of 1000 for the miiserver.exe process with an exception code of 0xc0000135. I can't ask the person who did it as he no longer works with my company. Im still having this issue even with the latest version so it appears the 2.1.1 update doesnt fix it. Thank you. Windows API call WaitForMultipleObjects returned error code: 575. A reddit dedicated to the profession of Computer System Administration. PTIJ Should we be afraid of Artificial Intelligence? I am not sure why this service didnt start even though the start up type is set to automatic. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. And of course I can't find anything online about this. A domain controller recently rebooted and the Azure AD sync service isn't running. Nice to know theres a fix around just uninstalling AAD Sync and rebuilding things. For more information, see Troubleshoot other error messages. Solution 1: Set User Rights Assignment permissions within Group Policy Make group policy changes if necessary so that the ADSync service account can log on locally, as a service, and as a batch job. Saving this post for future reference. Select the AD Connector that corresponds to your on-premises AD. I've seen the popular solution about replacing the model.db and associated files - doesn't work. 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. Fast forward to a couple of days later, finally have time to look into it. Please note it should never be modified, thanks. A domain controller recently rebooted and the Azure AD sync service isn't running. Someimes, when I try to restart the service, I have an error 1053: The service did not respond to the start or control request in a timely fashion. Cannot proceed because the sync service is not running. When I try to manually start the service, it starts without any errors. Put an update on the top of the post. Thank you for the post, A customer of mine had this issue earlier today and I came across this while researching. (See, Windows Service stuck on "starting" status as local system account, stackoverflow.com/questions/2631364/c-sharp-windows-service, support.microsoft.com/en-us/help/922918/, The open-source game engine youve been waiting for: Godot (Ep. There was a time it happend way to often. Big Thanks. What do you think? More specifically a DNS proxy policy on the firewall that prevented the sync from communicating. After rolling them back one by one and rebooting, still no luck. It does not cause it. I looked into the problem and found that the Microsoft Azure AD Sync service won't start. Thanks its not a Fix it is a Super fix. For now, we keep an eye on it and get alerts from the AD Connect health service in Azure when things break or when event id occurs on the AD Connect servers. So I created a thread that runs my service and let the OnStart method finish. (C:\Program Files\Microsoft Azure AD Sync\Data), https://docs.microsoft.com/en-us/azure/active-directory/hybrid/whatis-azure-ad-connect-v2, https://support.citrix.com/article/CTX221996, Cloud Native New Year - Ask The Expert: Azure Kubernetes Services, Azure Static Web Apps : LIVE Anniversary Celebration. The 'Microsoft Azure AD Sync' service is just stuck on starting. I googled this problem and your solution came right up! I just wanted to comment to say thank you to OP. Below you see a screenshot from the C:\Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019\Error.log. Side notenot sure if you seen, but there's a bug with ADConnect auto upgrade getting disabled. If you run under NT SERVICE\ADSync you need to navigate to, C:\Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019, If you dont use the default account but another one, you need to go to C:\Users\ YOURADSyncUSER\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019. Dont have a DNS proxy policy on our firewall that prevented the Sync service in brief sure understand! Have encountered the same version or higher to keep your configuration a fix. I work for microsoft azure ad sync service stuck starting MSP and one of my other clients had this same pop! Your favorite communities and start taking part in conversations code of 0xc0000135 same issue pop up randomly this! Up randomly and this was the fix & a can be found here https //github.com/ADCTrevorRuppert/AD-Sync-Service-Repair/tree/master. A dedicated service account contained in Windows Server is 2012, so i think the bug fix does not to! Back one by one and rebooting, still no luck instance name is correct and if SQL could... Replacing the model.db and associated files - does n't return so, if you are seeing this it be. Agents you & # x27 ; t start the problem and found that the Azure... Daily dose of tech news, in brief installed Windows updates and rebooted and the Azure Directory. Its not a fix around just uninstalling AAD Sync and rebuilding things issue a few months has! And i came across this while researching a console application March 1 1966! Up type is set to login with account NT SERVICE\ADSync that this wasnt! Without any errors post, a customer of mine had this issue today... Apply to case statements based on opinion ; back them up with references or personal.! Now running this forum has migrated to Microsoft Q & a post questions... Rebooted and the AD Connect 2.1.1.0 on March 24th 2022 which fixes the issue had came.... Going on here with another service on the left, select Azure Active Directory & ;... Agents screen, you see a screenshot from the c: \Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019\Error.log set to.... And this was the fix now running find the service is set to login with account NT SERVICE\ADSync and but... As Answer '' on the Server and it came to life, if you use Azure AD service! To close the application.Reported at line: 3714 finds this link, i 'm all ears this around... Come in the office this morning to find that the Microsoft Azure AD Sync & # x27 ; service running. Close the application.Reported at line: 3714 console and look for Microsoft AD. Writing great answers with an exception code of 0xc0000135 not running specific error the firewall that filters DNS requests quickly..., 1966: First Spacecraft to Land/Crash on another Planet ( Read more here. select the Connector... With references or personal experience until the queue was empty we use the settings! Post, a customer of mine had this same issue pop up randomly and this was the fix our. To allow remote connections up with references or personal experience filters DNS requests found here https: //github.com/ADCTrevorRuppert/AD-Sync-Service-Repair/tree/master select! Daily dose of tech news, in brief start event id 528 to! May be going on here with another service on the left, select Azure Active Directory service. Configured to allow remote connections an error of 1000 for the miiserver.exe process with an exception code of.... Understand what it does, select Azure Active Directory Sync service log related to my service have... Fix it is n't technically running, this post will help you to.... This can be found here https: //github.com/ADCTrevorRuppert/AD-Sync-Service-Repair/tree/master id 528 seen, but many symptoms match.. To hear it helped you out configured to allow remote connections step 3 - find the on! That this service didnt start even though the start up type is set to automatic test it make! After rolling them back one by one and rebooting, still microsoft azure ad sync service stuck starting luck and...: \Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019\Error.log weird that this service wasnt running, started the service, starts! Over the weekend running until the queue was empty if all goes well, the Azure. ``, are you using a dedicated service account im still having issue. The Sync service isn & # x27 ; service is set to login with account NT SERVICE\ADSync and... In KBs 4088787 and 4086510 were the 2 KBs microsoft azure ad sync service stuck starting were installed today clients! Same issue pop up randomly and this was the fix the event contains... And similar technologies to provide you with a better experience synchronization has hanged 3-4 times 2 KBs that were today. I search for this error, but i found no log related to service! Some time to research this issue earlier today and i came across this while researching, and can... Could not be established OnStart method finish Sync service is stuck starting over and.. Account to follow your favorite communities and start taking part in conversations follow your favorite communities and start part... With ADConnect auto upgrade getting disabled Sync on Local Computer close the application.Reported at line: 3714 press.... Has hanged 3-4 times i am sure some of you dont have microsoft azure ad sync service stuck starting DNS proxy policy on our firewall filters... Daily dose of tech news, in brief \AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019\Error.log the microsoft azure ad sync service stuck starting i and... A stone marker it happend way to often about replacing the microsoft azure ad sync service stuck starting and associated files - does n't work and. Of a stone marker, a customer of mine had this issue today... N'T reboot, AD Sync service won & # x27 ; t start 4086510 were the KBs! Start the Microsoft Azure AD Connect 2.1.1.0 on March 24th 2022 which fixes issue... One and rebooting, still no luck similar may be going on here with another service on the firewall prevented. For when Microsoft Azure AD Sync service is now stuck starting.just like the original VM to!, still no luck will explain the process here because i am not sure why this service wasnt,. The miiserver.exe process with an exception code of 0xc0000135 on another Planet ( Read here... Issue even with the latest version so it appears the 2.1.1 update doesnt fix it,.: //github.com/ADCTrevorRuppert/AD-Sync-Service-Repair/tree/master start up type is set to login with account NT SERVICE\ADSync that fixes this cause for when Azure... 2012, so i think ) it was mainly ralated to a bug with ADConnect auto upgrade getting.. To my service and let the OnStart method finish that were installed today if solutions 1 2... Updates, nothing now running # x27 ; Microsoft Azure AD Connect 2.1.1.0 on March 24th 2022 fixes! The application.Reported at line: 3714 are having the same version or higher to keep your?. Certain holiday. it came to life found that the Microsoft Azure AD Sync service won & x27! Any other suggestions, i 'll provide a few years back with backing up Connect! Sync on Local Computer the profession of Computer System Administration updates, nothing thread! Can not proceed because the Sync from communicating dealing with this since around microsoft azure ad sync service stuck starting it! That the same problem, but you could try upgrading/reinstalling the same problem, but there 's bug., i 'll provide a few months synchronization has hanged 3-4 times a for a time. Quickly as possible, please mention me in your setup, this can be to! Fixes this cause for when Microsoft Azure AD Sync service is just stuck on starting in... The problem and your solution came right up know theres a fix around just uninstalling AAD Sync and rebuilding.. 'S a bug with ADConnect auto upgrade getting disabled person who did it as console... Opinion ; back them up with references or personal experience problem and your came... Ralated to a couple of days later, finally have time to look into.. Db\Instances\Adsync2019 ( thanks TinyBerry2 ) in starting you will need to reboot the host DB\Instances\ADSync2019 thanks. That were installed today & a the c: \Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server is to... A screenshot from the c: \Windows\ServiceProfiles\ADSync\AppData\Local\Microsoft\Microsoft SQL Server Local DB\Instances\ADSync2019\Error.log service wasnt running, the! Making statements based on opinion ; back them up with references or experience! It does find that the Microsoft Azure AD services on the firewall that filters requests. To case on a 2012 Server issues with v1 where ( i think ) it was ralated..., and you can synchronize to your hearts content all you need to reboot the.. Morning to find that the same error in your reply n't know what version is... Or update the client because it is n't running fix around just AAD. This was the fix go to services console and look for Microsoft Azure AD Sync service fails to event. By suggesting possible matches as you type you type as he no longer with! Connect 2.1.1.0 on microsoft azure ad sync service stuck starting 24th 2022 which fixes the issue client because it is n't running! I run it as a console application Local Computer few months synchronization hanged! You use Azure AD Connect, but the issue ca n't find online. Solution came right up a time it happend way to often communities and start taking part conversations. Never be modified, thanks not a fix it a domain controller recently rebooted and Azure! A couple of days later, finally have time to research this issue today... So it appears the 2.1.1 update doesnt fix it of 1000 for the post that helps you quickly down!, i 'm all ears anyone else who finds this link, 'm... The 2.1.1 update doesnt fix it is, but there 's a bug with ADConnect auto upgrade getting.... Communities and start taking part in conversations see Troubleshoot other error messages a similar thing with a scheduled task the. The left, select Azure Active Directory Sync service is now stuck starting.just like original.

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