To expand on what Auto (Do you mind if I call you Auto?) was saying, the "/*" and "*/" are the beginning and end of comment blocks. The config has them commented out to begin with and you need to remove them for the config to see them. Look at the top and bottom of the snip below. /* "shared_folders" : [ { // use --generate-secret in command line to create new secret "secret" : "MY_SECRET", // * required field "dir" : "/home/worm/exchanger", // * required field // use relay server when direct connection fails "use_relay_server" : true, "use_tracker" : true, "use_dht" : false, "search_lan" : true, // enable sync trash to store files deleted on remote devices "use_sync_trash" : false, // specify hosts to attempt connection without additional search "known_hosts" : [ // "192.168.1.2:44444", // "myhost.com:6881" ] } ] */