Error using Auto Discover to connect to Office 365: "The remote server returned an error: (401) Unauthorized." (4222370)

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Título

Error using Auto Discover to connect to Office 365: "The remote server returned an error: (401) Unauthorized."
Descripción

When attempting to connect to Office 365 using Auto Discover, the following message is displayed on screen:

"Could not connect to the Autodiscover service on Exchange.
The service does not exist or the account you use does not have sufficient permissions to access the service.
Alternatively, select a different connection method."

QuestSoftware.Emo.log shows:
Sep 28 14:35:39.662 [9416:0020] 17 Autodiscover.GetRedirectUrl(): Trying GET redirect URL on non-SSL URL 'http://autodiscover.company.com/autodiscover/autodiscover.xml'
Sep 28 14:35:39.678 [9416:0020] 17 Autodiscover.GetRedirectUrl(): Exception: System.Net.WebException: The remote server returned an error: (401) Unauthorized.
at System.Net.HttpWebRequest.GetResponse()
at QuestSoftware.Emo.Autodiscover.GetRedirectUrl(String url)
Causa

Recovery Manager for Exchange expects to redirect from autodiscover.company.com to https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml in one redirect, not two. The 1st redirect is to a local Load Balencer, which there is a prompt on screen, rather then just redirecting to Office 365
Resolución

WORKAROUND

1. On the Recovery Manager for Exchange machine Edit the local hosts file located at C:\Windows\System32\Drivers\etc
2. Ping autodiscover-s.outlook.com from Command Prompt
3. Note the IP address that is returned
4. From within the Hosts file, add an entry for autodiscover.company.com to the IP address found in the above Ping request:
autodiscover.company.com 40.xx.xxx.xx
5. Save & Close the Hosts file
6. Try adding your Office 365 Mailbox again in the Recovery Manager for Exchange Console.

STATUS
Enhancement Request RMEX-344 has been submitted to Development for consideration in a future release of Recovery Manager for Exchange
ID de defecto

RMEX-344

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Contenido recomendado

Producto(s):: Recovery Manager for Exchange
5.8.1

Tema(s):: Troubleshooting

Historial del artículo:: Creado el: 10/12/2017
Última actualización: 5/7/2023

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Error using Auto Discover to connect to Office 365: "The remote server returned an error: (401) Unauthorized." (4222370)

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