Add Teradata TSG

Author: Lucky-Wang16

articles/data-factory/TOC.yml

@@ -1278,6 +1278,9 @@ items:
       - name: Snowflake
         href: connector-troubleshoot-snowflake.md
         displayName: troubleshooting
+      - name: Teradata
+        href: connector-troubleshoot-teradata.md
+        displayName: troubleshooting
       - name: XML format
         href: connector-troubleshoot-xml.md
         displayName: troubleshooting

articles/data-factory/connector-troubleshoot-teradata.md

@@ -0,0 +1,49 @@
+---
+title: Troubleshoot the Teradata connector
+titleSuffix: Azure Data Factory & Azure Synapse
+description: Learn how to troubleshoot issues with the Teradata connector in Azure Data Factory and Azure Synapse Analytics. 
+author: jianleishen
+ms.subservice: data-movement
+ms.topic: troubleshooting
+ms.date: 05/08/2025
+ms.author: jianleishen
+ms.custom: has-adal-ref, synapse
+---
+
+# Troubleshoot the Teradata connector in Azure Data Factory and Azure Synapse
+
+[!INCLUDE[appliesto-adf-asa-md](includes/appliesto-adf-asa-md.md)]
+
+This article provides suggestions to troubleshoot common problems with the Teradata connector in Azure Data Factory and Azure Synapse. 
+
+## Error Message: Could not resolve Data Source=xxx.xxx.xxx to an available node after 1 attempts.
+
+- **Symptoms**: Copy activity fails with the following error:
+
+    **Message**: `[.NET Data Provider for Teradata] [115025] Could not resolve Data Source=xxx.xxx.xxx to an available node after 1 attempts. [Socket Transport] [10060] System.Net.Sockets.SocketException (0x80004005): A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond xx.xx.xx.xx.`
+
+- **Cause**: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond xx.xx.xx.xx.
+
+- **Resolution**: You are recommended to use a different SSL mode.
+
+## Error Message: Remote certificate error.
+
+- **Symptoms**: Copy activity fails with the following error:
+
+    **Message**: `[.NET Data Provider for Teradata] [115056] Remote certificate error. Details: SslPolicyErrors: RemoteCertificateNameMismatch.`
+
+- **Cause**: The Subject Alternative Name (SAN) extension of the remote TLS certificate does not contain the hostname or the IP address which was used to establish the connection.
+
+- **Resolution**: You are recommended to use a different SSL mode.
+
+## Related content
+
+For more troubleshooting help, try these resources:
+
+- [Connector troubleshooting guide](connector-troubleshoot-guide.md)
+- [Data Factory blog](https://techcommunity.microsoft.com/t5/azure-data-factory-blog/bg-p/AzureDataFactoryBlog)
+- [Data Factory feature requests](https://feedback.azure.com/d365community/forum/1219ec2d-6c26-ec11-b6e6-000d3a4f032c)
+- [Azure videos](https://azure.microsoft.com/resources/videos/index/?sort=newest&services=data-factory)
+- [Microsoft Q&A page](/answers/topics/azure-data-factory.html)
+- [Stack Overflow forum for Data Factory](https://stackoverflow.com/questions/tagged/azure-data-factory)
+- [X information about Data Factory](https://x.com/hashtag/DataFactory)