Unable to connect to a Plesk for Windows server via FTP when computer name is longer than 15 characters: Login failed.

Symptoms

• When connecting to a Plesk server via FTP, the operation fails with the following error messages:

  PLESK_INFO: 530 User cannot log in, home directory inaccessible.
  Login failed.

  In FileZilla:

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

• The plesk repair ftp utility reports the following error message:

  C:\> plesk repair ftp -n
  
  Checking host name
      The name cannot be longer than 15 characters ...................... [ERROR]

Cause

The hostname (computer name) cannot be longer than 15 characters.

Resolution

Change the hostname (computer name):

1. Connect to your Plesk server via RDP.

2. Right-click on Windows Start > click Settings > System > About.

3. Click Rename this PC and specify a new computer name (max 15 characters).

4. Click Next.

5. Restart the system.