Azure Arc Configuration - The given key was not present in the dictonary (GUI only)

Andreas Hartig 116 Reputation points

Hello Community,

I am trying to join Windows Server 2022 and Windows Server 2025 using the new Azure Arc Configuration GUI.

Using the Azure Arc Configuration GUI always and on both systems gives me "the given key was not present in the dictionary when after choosing the Resource Group and the GUI trying to populate the Azure Region.

Doing the same thing running this script with the same user and settings works perfectly: azcmagent connect --subscription-id "xxxxxxxxxxxxxxx" --resource-group "weu-rg-azurearc" --location "westeurope"
User's image

I already went down the path to try it with the supported Windows Server OS and even re-created an Azure Tenant & Subscriptions and multiple Resource Groups. The result in all scenarios on all Windows Servers using the GUI was the same.

Anyone has an idea on what to try next?


Azure Arc
Azure Arc
A Microsoft cloud service that enables deployment of Azure services across hybrid and multicloud environments.
338 questions
Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
12,278 questions
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2 answers

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  1. Karl Wester-Ebbinghaus 36 Reputation points MVP
    1 person found this answer helpful.
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  2. Andreas Hartig 0 Reputation points

    Official statement from the Support Team: „….the issue you are experiencing is a global issue impacting all Windows Server clients and unfortunately we can't provide a fix at this time.   

    We are expecting the bug fix to be realized with the next version 1.41. that is scheduled for May. 

    Kindly be informed that the time provided is an estimate and might take more time than expected.“

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