Symptoms

FTP connection fails with the error below:

Response:       530 User cannot log in, home directory inaccessible.
Error:  Critical error: Could not connect to server

Cause

The website for which FTP account is used is running on dedicated IP. The External IP Address of Firewall does not match to the IP address of the website in IIS.

Resolution

1. Go to IIS manager
2. Under Sites folder find the node with IP address used for the website (for example 192.168.0.1), click it
3. On the middle pane find FTP Firewall Support button and click it
4. Set External IP Address of Firewall the same as dedicated IP address of the website (in this example 192.168.0.1)
5. Click Apply on the right pane.