Can't sync to server?

[r.flagg]

What good is a file "backup" app if I am simply backing up from one folder to another? Most ISPs block port 445, the network file share port... It's time for solutions to that. Dropbox, Box, and OneDrive all restrict the names you can use on folders and therefore make it impossible to really do some real file syncing.. You have a huge opportunity here! Don't waste it.

[xCSxXenon]

I can sync to external servers with no issues. Make sure your port forwarding is allowing the correct traffic. Otherwise, that's exactly what a backup is: another copy of your data.