Thanks. I installed it on two windows machines, it work fine for now. but I am having trouble installing it on Rpi and ubuntu machines. I copied the files and started the service. It said "bla bla bla btsync forked to background" But I have nothing my_ip:8888, page not avaliable. Update. Some progress with RPi. After I done "Sudo killall btsync", "sudo dpkg-reconfigure btsync". sudo ./btsync. the webpage finally loads a white screen. I checked the html source and fuound this. <div id="noload" style="position:fixed; top:0px; height:100%; left:0px; width:100%; background:white; padding:40px;"> <br> <div> Your system was unable to load BitTorrent Sync properly. For information on how to fix this issue, please see the <a href="http://sync-help.bittorrent.com/customer/portal/articles/1706559-screen-loading-error">Sync Knowledge Base</a>.Update 2. I waited a couple of minutes and it finally loaded on Rpi. It works but with same Out of the sync problem. Then I checked the version and it is old 1.4.103 ! I dont understand how it is possible. I have deleted the btsync file on Rpi and put there newly downloaded btsync from tar.gz. Still nothing on ubuntu machine