Merge pull request #293030 from halkazwini/nw-ct

Update Connection Troubleshoot overview

Author: prmerger-automator[bot]

articles/network-watcher/connection-troubleshoot-overview.md

@@ -6,7 +6,7 @@ author: halkazwini
 ms.author: halkazwini
 ms.service: azure-network-watcher
 ms.topic: concept-article
-ms.date: 02/22/2024
+ms.date: 01/14/2025
 
 #CustomerIntent: As an Azure administrator, I want to learn what connectivity problems I can use Connection troubleshoot to diagnose so that I can use it to resolve those problems.
 ---
@@ -34,10 +34,10 @@ Connection troubleshoot provides the capability to check TCP or ICMP connections
 - Virtual machines
 - Virtual machine scale sets
 - Azure Bastion instances
-- Application gateways (except v1)
+- Application gateways v2 (except private deployments. For more information, see [Private Application Gateway deployment (preview)](../application-gateway/application-gateway-private-deployment.md))
 
 > [!IMPORTANT]
-> Connection troubleshoot requires that the virtual machine you troubleshoot from has the *Network Watcher agent VM extension* installed. The extension is not required on the destination virtual machine.
+> Connectivity test of connection troubleshoot requires that the virtual machine you run the test from has the ***Network Watcher agent VM extension*** installed.  This extension is not required for running other connection troubleshoot tests or on the destination virtual machine.
 > - To install the extension on a Windows virtual machine, see [Network Watcher agent VM extension for Windows](network-watcher-agent-windows.md).
 > - To install the extension on a Linux virtual machine, see [Network Watcher agent VM extension for Linux](network-watcher-agent-linux.md).
 > - To update an already installed extension, see [Update Network Watcher agent VM extension to the latest version](network-watcher-agent-update.md).