add file

Author: Deland-Han

support/windows-365/connection-fails-with-connection-to-the-remote-pc-was-lost.md

@@ -0,0 +1,25 @@
+---
+title: Connection fails with "connection to the remote PC was lost."
+description: Introduces how to resolve the connection failure with "Failed to open a Microsoft Entra ID credential prompt."
+audience: itpro
+manager: dcscontentpm
+ms.date: 04/02/2025
+ms.reviewer: wincicuex, erikje
+ms.topic: troubleshooting
+---
+# Connection fails with "connection to the remote PC was lost."
+
+A user authenticates on the sign in page. When the user tries to connect to the Cloud PC, the user may encounter the following message:
+
+> Lost connection  
+> 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.
+
+## Cause
+
+This error commonly occurs because of network filtering.
+
+Connecting to a Cloud PC from a Windows 365 Link has the same Network requirements as other clients. The network connection being used might be blocking, or filtering endpoints that are required to use the service.
+
+## Resolution
+
+To resolve this issue, fix the networking problem. For more information, see [End user devices](https://learn.microsoft.com/en-us/azure/virtual-desktop/required-fqdn-endpoint?tabs=azure#end-user-devices).

support/windows-365/toc.yml

@@ -5,6 +5,8 @@ items:
   href: ./health-checks.md
 - name: Connection errors
   href: ./connection-errors.md
+- name: Connection fails with "connection to the remote PC was lost."
+  href: connection-fails-with-connection-to-the-remote-pc-was-lost.md
 - name: Known issues with Windows 365 Business
   href: ./known-issues.md
 - name: Known issues with Windows 365 Enterprise and Frontline