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It seems a problem on your service account used to connect on Database.
For more information about how configure service account please refer to the following article :
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Azure AD Connect Install fails on Win2022 Server
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 33%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENC%3C/text%3E%3C/svg%3E)
Neko Chang Taiwan
10
Reputation points
Hi All.
I'm newbie of Azure & Active Directory
Background:
- ex-IT guy migrated in-place Exchange mail server to cloud Microsoft 356, and an AD server for access permission manage of local file server @ Windows server 2012 R2 in VM(PC name: XXXXX, named OLD server here) and synchronize by Azure AD Connect V1.
- But he gone away @ 2022, no job handover to me, only 95% of Server IP/User/Password pass to me, no more detail.
- OLD server work fine, until Microsoft announced Azure AD Connect V1 departed @ 2023/10, automatic AD synchronize didn't work after, but manual synchronize (PS> Start-ADSyncSyncCycle -PolicyType Delta) work fine until 2024/2
Before 2024/2, I had been try to install Azure AD Connect V2(a.k.a. Microsoft Entra connect sync) @ OLD server but fail due system too old.
Therefore I setup Windows server 2022 Standard in VM(PC name: XXXXX, named NEW server here), and execute AD synchronize my expect.
AD replication successful.
Next, I tried to setup Microsoft Entra connect sync @ NEW server failed.
- I afraid AD object damaged @ OLD server and Cloud, therefore Customize installation first because original AAD exist and exported synchronization setting @ OLD server
- Customize installation, I imported synchronization setting from OLD server, but got failed as follows Tried 3 days and googled, could not fix. (No log provide because the VM deleted)
- Think about conflict with existence object possible, tried Express installation but got failed also as follows
I can not understand about Unable to install the Synchronization Service. The account name is invalid or does not exist, or the password is invalid for the account name specified No idea what user/password using for Synchronization Service.
Addition, in my case, back to customize installation is recommend?
If true, I will back to customize installation.
Or migrate to Microsoft Entra cloud sync? (But googled, this procedure can not work in my case (Need Azure AD Connect V2 first?)
Thanks a lot.
Neko
Microsoft Security Microsoft Entra Microsoft Entra ID
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 17%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGM%3C/text%3E%3C/svg%3E)
Givary-MSFT 35,621 Reputation points Microsoft Employee Moderator2024-03-12T12:04:57.2566667+00:00 @Neko Chang Taiwan Thank you for reaching out to us, sharing environment details like domain name, server name on public platform is not a good practice.
I would be happy to help you with the Entra Connect/Azure AD Connect installation on a new server, lets connect offline on this/sharing my details over the private message.
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Denzel Moyo 0 Reputation points2024-09-10T10:56:16.5966667+00:00 Hie Givary-MSFT
I am having the exact same issue as described above, can you please assist resolving it?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(281.6, 80%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETB%3C/text%3E%3C/svg%3E)
Thameur-BOURBITA 36,261 Reputation points Moderator2024-03-12T14:24:44.36+00:00
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Neko Chang Taiwan 10 Reputation points
2024-03-14T02:18:03.0766667+00:00 Hi @Thameur-BOURBITAThanks your replied quickly.
Let me try your suggestion at next Monday due business trip.
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Neko Chang Taiwan 10 Reputation points
2024-03-25T07:53:45.91+00:00 Hi @Thameur-BOURBITA
Thanks you, but my new server is fresh installation (AD replicated).
Create new account automatically/manually I assume.Microsoft expert helped us to setup like created service account manual, applied to option of "Use an existing service account" and got
System.Exception: Unable to install the Synchronization Service. The account name is invalid or does not exist, or the password is invalid for the account name specified Please see the Application and System event logs for additional details. ---> System.ComponentModel.Win32Exception: The account name is invalid or does not exist, or the password is invalid for the account name specifiederror. -
Givary-MSFT 35,621 Reputation points Microsoft Employee Moderator
2024-03-26T04:11:27.63+00:00 @Thameur-BOURBITA Working offline on this with @Neko Chang Taiwan
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Neko Chang Taiwan 10 Reputation points
2024-03-26T04:45:21.6066667+00:00 Hi @Givary-MSFT
Thanks you,
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Thameur-BOURBITA 36,261 Reputation points Moderator
2024-03-26T08:43:52.0733333+00:00 Can you tell us more about your server ?
Is it a domain controller , a member server or workgroup ?
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