In LAN settings on the receiver I said No to "Use DHCP" because from what I understand that can keep changing the IP address of the receiver which means you need to enter the new IP address via FTP every time you want to connect via FTP.
I was connected via FTP with these settings:
Host: 192.168.0.5 (this matches the IP Address of the receiver)
Logon Type: Normal
User: Root
Password: left this blank
For the past week I could connect via FTP. I've not changed anything and today I can't connect. Please help.