On Jul 30, 2013, at 9:31 AM, MikeN <mniemann at oowidgets.com> wrote: > I have a simple FTP binary file upload, the code works fine in VS and Xamarin As Aaron Oneal asked, what's the error? If it's a UriFormatException, it could be this: https://bugzilla.xamarin.com/show_bug.cgi?id=13343 - Jon