BizTalk Server: Troubleshooting FTP Adapter Connectivity Error - The remote server refused a data connection

This Wiki is based on Forum Thread: FTP adapter Connectivity Error

Problem

Sometimes while configuring/using FTP Adapter on send port, we face connectivity issue with following error:

"The remote server refused a data connection.

Please check permissions on the remote system."

Solution

To solve this issue, we need to check two things:

1. FTP Authentication settings in IIS
2. FTP Authentication settings on FTP Send Port

FTP Authentication settings in IIS

To check the FTP Authentication settings in IIS, perform the following steps:

1. Open IIS Manager (Ctrl + R --> inetmgr)

2. Expand Sites and go to Default FTP Site

3. In FTP Settings, double-click FTP Authentication

   

4. Verify the FTP Authentication --> Basic Authentication is Enabled (Enable if it is Disabled)

   

FTP Authentication settings on FTP Send Port

Now check authentication settings on FTP Send Port:

1. Go to FTP Send Port --> Configure --> FTP Transport Properties

2. Check the User Name and Password. The user should have rights on the specified FTP Server.

   

The issue should be resolved by performing above steps.

See Also

Read suggested related topics:

• BizTalk Server: List of Errors and Warnings, Causes and Solutions

Another important place to find an extensive amount of BizTalk related articles is the TechNet Wiki itself. The best entry point is BizTalk Server Resources on the TechNet Wiki.