If you using OSOP formats to import order files (or export orders to) using the built in FTP client and there are connection problems you can use the following approach to get more details on what the issue is.
This uses the build Windows FTP client.
1 Run a command shell (press Start and select Run then type cmd.exe and press return)
2 Type ftp, followed by your server name, and press return
3 Type your username for your server and press return.
4 Type in the password and press enter. Note that the characters typed are not shown.
5 Type in ls and press Enter. This lists the files.