Hi i have made an Raspberry pi image, and in this image are some folders wich should be synced with my home PC. In the Lokal Network everything is fine, but over the Internet, nearly all peers dound othing, but a few working. I made a Version of the image an half year ago, and everyting works fine, but my new image have this problem.. I thought i dont habe to open ports or something like that on the clients router. So how can i get this to work? Here are the settings of the folder!