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Event ID 1 MSExchange Autodiscover

Hossein 20 Reputation points
2024-05-14T05:55:38.5466667+00:00

Hi,

Recently I migrated Exchange 2016 to 2019, then I temporarily shut down Exchange 2016 and removed the Autodiscover URL from Exchange 2016

Everything works well but Exchange 2019 shows the below error:

Error-1

Details

Error-2

I run this command

Get-ClientAccessService | Select Name, AutoDiscoverServiceInternalUri, AutoDiscoverSiteScope | Format-List

the result is like this :

Name : ServerExchange2019

AutoDiscoverServiceInternalUri : https://autodiscover.FQDN/Autodiscover/Autodiscover.xml

AutoDiscoverSiteScope :

I appreciate any feedback on this.

Thank you so much

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Exchange Server
A family of Microsoft client/server messaging and collaboration software.
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Microsoft Exchange
Microsoft messaging and collaboration software.
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Accepted answer
  1. Mike Hu-MSFT 935 Reputation points Microsoft Vendor
    2024-05-14T09:01:26+00:00

    Hi @Hossein,

    Welcome to the Microsoft forum.

    Based on your description, the error may because that the external URL is not configured properly.

    To work around this issue, you should check the external URL for the following virtual directories:  

    Get-WebServicesVirtualDirectory -server YourExchangeServerName | fl name, url

    Get-AutodiscoverVirtualDirectory -server YourExchangeServerName | fl name, url

    Get-ActiveSyncVirtualDirectory -server YourExchangeServerName | fl name, url

    If the external URL is blank, assign a value to the external URL that corresponds to the public FQDN.

    More details just follow the article: Autodiscover Event ID 1 after installing Exchange Server 2019 CU3 or Exchange Server 2016 CU14 - Microsoft Support

    Hope this helps.

    1 person found this answer helpful.

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  1. Amit Singh 4,851 Reputation points
    2024-05-14T09:34:59.93+00:00

    Set the ExternalURL property of the Autodiscover virtual directory, like this:

    Get-AutodiscoverVirtualDirectory -Server | Set-AutodiscoverVirtualDirectory -ExternalUrl https://autodiscover.contoso.com/Autodiscover/Autodiscover.xml

    1 person found this answer helpful.