Wednesday, June 3, 2026
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CM InfrastructureSCCM InstallationSCCM Infrastructure

Failed to download Admin UI content Payload

By Haresh Hirani
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8940

Issue reported:

While trying to apply the 1606 hotfix.  1606 hotfix but it is stuck in Downloading state

Requester has perform pre validation check like restarted the SMS_EXECUTIVE, removed and re-added the Service Connection Point but error is not moving

The DMPDOWNLODER.log has an error in it.

ERROR:

Failed to download Admin UI content payload with exception: Unable to connect to the remote server~ the inner exception messge is No connection could be made because the target machine actively refused it 23.214.145.204:443~ the exception call stack is    at System.Net.HttpWebRequest.GetResponse()~~   at Microsoft.ConfigurationManager.DmpConnector.Connector.

SCCMConnectorUtility.DownloadManifestCab(Uri manifestCabUrl, String manifestCabPath, IWebProxy proxy)~~   at Microsoft.ConfigurationManager.DmpConnector.

MessageDownload.MessageDownloader.AdminUIContentDownload()~ the inner exception call stack is    at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)~~   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception).

The hman.log has no errors at all.

Solution:

Step 1:  Found network was blocking, After enable below URL download went smother as normal.

Configuration Manager Proxy Exceptions

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Thanks&regards,
Haresh Hirani
Email: [email protected], [email protected]
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Author

  • Hi, I’m Haresh Hirani the mind behind Hiraniconfigmgr.com. I’m a seasoned IT professional with deep expertise in Microsoft technologies, especially in Configuration Manager (ConfigMgr/SCCM). Over the years, I’ve expanded my skill set to cover a broader range of modern device management platforms like Microsoft Intune, Jamf Pro, ManageEngine Endpoint Central, and VMware AirWatch (Workspace ONE UEM), I use this blog to document real-world, tested, working fixes and walkthroughs from my daily technical experiences. The 💡idea is simple: if it helped me, it might help someone like you. My goal is to create a living repository of practical IT solutions for the community. If you find something useful, or if you want to collaborate, feel free to connect with me on LinkedIn or drop a message through the Contact page. Happy to help.

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