Unable to access published apps in RDS integrated with Azure Active Directory Proxy from the Internet

Josy1 1 Reputation point
2022-06-09T23:43:28.713+00:00

I setup Remote Desktop Services onprem, integrated it with Azure Active Directory Proxy AADProxy for web access.

I followed instructions in the links below.

I have one Microsoft Azure Active Directory Proxy Server running in AWS, and one Remote Desktop Services Server running in the same Availability Zone in AWS.

I am using a Public SSL Certificate for my RDS Services.

I am able to authenticate and access RDS published resources from my Company Network without remote desktop web client, with web client authentication works but I get the following error when I try to access published resources. "The connection to the remote PC was lost. This might be because of a network connection problem. If this keeps happening ask your admin or tech support for help"

I can authenticate to RDS from the internet but I am unable to access any RDS published resources without web client and with web client. I get the following error messages.

Without using Web Client

"Your computer can't connect to the remote computer because authentication to the firewall failed due to missing firewall credentials. To resolve the issue, go to the firewall website that your network administrator recommends, and then try the connection again, or contact your network administrator for assistance:

With Web Client

"Opps, we couldn't connect to "published resource name"

"The connection to the remote PC was lost. This might be because of a network connection problem. If this keeps happening, ask your admin or tech support for help"

Configuration reference documents:

https://learn.microsoft.com/en-us/answers/questions/448888/remote-desktop-with-azure-ad-application-proxy.html

https://learn.microsoft.com/en-us/azure/active-directory/app-proxy/application-proxy-integrate-with-remote-desktop-services
https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/remote-desktop-web-client-admin

https://parveensingh.com/publish-rds-environment-with-azure-ad-application-proxy/
https://learn.microsoft.com/en-us/azure/active-directory/app-proxy/application-proxy-troubleshoot

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