Thanks to both of you. I think what I was doing wrong was that I put the server name in the place where I should have put ‘gallery’. It seems to be working now, and I will also take note of your comment rollingWolf re the size.
I will probably stick with using the ‘drag to upload’ though for most things as I was trying to do this so I could share my photos with a friend who wanted the info in my .exif and it didn’t seem to be visible.