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Cannot RDC a Win10 client machine [Resolved]

In our Windows SBS 2011 network with about a ten Windows 10 1803 client machines, we cannot connect to one of them using Remote Desktop Connection. The error is the following:

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Here are the Firewall settings of the problematic PC:

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Here are the Firewall settings of other clients, where the connection can be successfully established.

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How do I replicate the same settings on the problematic machine?


Question Credit: abenci
Question Reference
Asked October 10, 2018
Posted Under: Network
2 Answers

Your screenshot shows that the firewall exception is only configured for Domain networks. Windows 10 1803 made it pretty difficult to check the currently active connection profile, the easiest way is to do this via powershell:

PS C:\> Get-NetAdapter | Get-NetConnectionProfile
Name             :
InterfaceAlias   : Ethernet 3
InterfaceIndex   : 10
NetworkCategory  : DomainAuthenticated
IPv4Connectivity : Internet
IPv6Connectivity : NoTraffic

You will get errors for interfaces that are not connected, you can safely ignore them. Relevant is the attribute NetworkCategory. If it shows DomainAuthenticated it's seen as a domain network and the firewall exception should work. If you get a different value you either have to fix the network detection, or configure the firewall to allow RDP on other profiles.

The second thing to check, is if remote connections are allowed at all. Again, Windows 10 1803 made it difficult to find the dialog for this. The easiest way is to just run sysdm.cpl. (You can do this right from the powershell, or from the run dialog, it doesn't matter).

Open the Remote tab and check if the Remote Desktop section allows connections.

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credit: Gerald Schneider
Answered October 10, 2018

Using RemoteDesktopConnection with the machine IP worked. So we investigated inside the Windows Server DNS Manager and discovered that the IP used was assigned to a different machine name. Deleting one record and changing the IP address in the correct machine name resolved the issue.

Just to recap, the machine name and the network IP address did not refer to the same PC inside the DNS Manager.

credit: abenci
Answered October 10, 2018
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