Adding NSG troubleshooting recommendation

Author: whhender

articles/purview/toc.yml

@@ -261,7 +261,7 @@ items:
       href: how-to-resource-set-pattern-rules.md
     - name: Monitor data map population
       href: how-to-monitor-data-map-population.md
-    - name: Troubleshoot connection issues
+    - name: Troubleshoot scans & connections
       href: troubleshoot-connections.md
   - name: Data catalog
     items:

articles/purview/troubleshoot-connections.md

@@ -1,17 +1,17 @@
 ---
-title: Troubleshoot your connections in Microsoft Purview
-description: This article explains the steps to troubleshoot your connections in Microsoft Purview.
+title: Troubleshoot scans and connections in Microsoft Purview
+description: This article explains the steps to troubleshoot your scans and source connections in Microsoft Purview.
 author: linda33wj
 ms.author: jingwang
 ms.service: purview
 ms.subservice: purview-data-map
 ms.topic: how-to
-ms.date: 12/05/2022
+ms.date: 03/07/2023
 ms.custom: ignite-fall-2021
 ---
-# Troubleshoot your connections in Microsoft Purview
+# Troubleshoot your scans and connections in Microsoft Purview
 
-This article describes how to troubleshoot connection errors while setting up scans on data sources in Microsoft Purview.
+This article describes how to troubleshoot connection errors while setting up scans on data sources in Microsoft Purview, or errors that may occur with your scans.
 
 ## Permission the credential on the data source
 
@@ -88,6 +88,10 @@ If your Microsoft Purview scan used to successfully run, but are now failing, ch
 1. Is an [Azure Policy](../governance/policy/overview.md) preventing **updates to Storage accounts**? If so follow the [Microsoft Purview exception tag guide](create-azure-purview-portal-faq.md) to create an exception for Microsoft Purview accounts.
 1. Are you using a self-hosted integration runtime? Check that it's up to date with the latest software and that it's connected to your network.
 
+## Test connection passes but scan fails with connection error
+
+Are you using private endpoints or virtual networks? Confirm your [network settings](concept-best-practices-security.md#network-security), paying attention to your Network Security Group (NSG) rules.
+
 ## Next steps
 
 - [Browse the Microsoft Purview Data Catalog](how-to-browse-catalog.md)