DB2 connector - add link to HIS troubleshooting doc

Author: linda33wj

articles/data-factory/connector-db2.md

@@ -12,7 +12,7 @@ ms.workload: data-services
 
 
 ms.topic: conceptual
-ms.date: 01/14/2020
+ms.date: 02/17/2020
 
 ms.author: jingwang
 
@@ -45,6 +45,9 @@ Specifically, this DB2 connector supports the following IBM DB2 platforms and ve
 * IBM DB2 for LUW 10.5
 * IBM DB2 for LUW 10.1
 
+>[!TIP]
+>DB2 connector is built on top of Microsoft OLE DB Provider for DB2. To troubleshoot DB2 connector errors, refer to [Data Provider Error Codes](https://docs.microsoft.com/host-integration-server/db2oledbv/data-provider-error-codes#drda-protocol-errors).
+
 ## Prerequisites
 
 [!INCLUDE [data-factory-v2-integration-runtime-requirements](../../includes/data-factory-v2-integration-runtime-requirements.md)]