Robo-Tank v6.0 is Ready - Now v6.5

[Rob F]

Ok that's the problem, it should have returned something like this.

[{"systemSettingID":"1","userID":"1","configView":"0","tempCorF":"1","timeFormat":"1","outletSortID":"1","dcSortID":"1","scheduleTabSelected":"0","scheduleSortID":"2","scheduleSortOrder":"1","emailEnabled":"0","smtpServer":"smtp.office365.com","smtpPort":"587","smtpUser":"","smtpPass":"","smtpProvider":"0","autoUpdate":"0","version":"6.4","controllerVersion":"2","versionLatest":"6.4","supportID":"1062590678","db9_1":"0","db9_2":"0"}]

I don't think the server is running or you're not connected to the network. Are you able to log into the Pi SSH using putty or similar?