Windows Admin Center connection problems

Question

I have a small lab domain consisting of 3 windows servers (one of which is new to the domain) and a handful of Windows 10 workstations.
The servers are as follows:

WIndows server 2012 R2
Windows server 2016 (old main server)
Windows server 2019 (new main server)

I am trying to run Windows Admin Center

I added the 3 servers using the fully qualified domain names
When I try to connect to them I get

Connection error
Connecting to remote server wgfs6.wg.<aaa>.com failed with the following error message : The WinRM client received an HTTP status code of 502 from the remote WS-Management service. For more information, see the about_Remote_Troubleshooting Help topic.

I then added the new server by IP address, which initially worked, but after updating something on it (I forget what), I now get

Connection error
Connecting to remote server x.x.x.x failed with the following error message : The WinRM client received an HTTP status code of 403 from the remote WS-Management service. For more information, see the about_Remote_Troubleshooting Help topic.

Anybody have this experience?

Answer 1

Hello @NILS ANDERSEN

1. Make sure IIS WinRM extension is installed. Open powershell and run command : WinRM Quickconfig.
2. Are you using a proxy server in your environment?
   If yes, Run CMD as Administrator:
   • type the following command: netsh winhttp show proxy
   • If you can see that you have a WinHTTP proxy configured please use netsh winhttp reset proxy to turn it off.

Best Regards
Karlie

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Answer 2

PS: I get the same 502 error when I try to connect to the local Windows 10 machine running Windows Admin Center