Windows Admin Center: Client not working due to WAC Errors

Summary: Windows Admin Center WAC Client-side issues and what to do about it.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Instructions

Clear WAC CACHE- all locations on WAC server. 

  • Close browser
  • C:\Users\<user>\AppData\Local\Microsoft\Edge\User Data
  • %temp%
  • C:\Windows\Temp
  • Restart WAC Service
  • Unblock all permissions for the WAC URL in the edge browser
  • Start Lusrmgr.msc and choose groups
  • Edit the Credssp Admin Group and add the domain admin to this group 

The Domain admin running WACalso must be added to the local admin group.

They should also be added to the remote management users group.

Affected Products

Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022
Article Properties
Article Number: 000210128
Article Type: How To
Last Modified: 15 Apr 2025
Version:  4
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