"A socket operation was attempted to an unreachable network x.x.x.x:5557"
means that the server could not be reached. There are a number of reasons that could cause this issue.
- The server is down.
- Your computer is blocking the server connection incoming / outgoing
(firewall)
- Unreliable internet access
- You mis-configured your connection string (the server string)
Essentially the issue most users will experience is that their firewall is blocking access to their FTP connection request. To fix this you must allow the application through your file wall.
-Cheers