I dumped the sample configuration, and it says this: // Advanced preferences can be added to config file. // Info is available in BitTorrent Sync User Guide. So I pulled the options from the guide, and attempted to add them to the config file (using the ppa from here). I'm no JSON expert, but I fail to see where I'm going wrong: { "pid_file" : ".btsync.pid", "storage_path" : ".btsync", "listening_port" : 0, "check_for_updates" : true, "use_upnp" : true, "download_limit" : 0, "upload_limit" : 0, “disk_low_priority” : true, “lan_encrypt_data” : false, “lan_use_tcp” : true, “rate_limit_local_peers” : false, "webui" : { "listen" : "127.0.0.1:9999" } } When starting with those options I get the following error: Error while parsing config file: Unexpected end of config file (are you missing '}') ? If I delete the 4 "advanced" options, it works again. Are they supposed to go in their own section? If so, what does that look like? TIA, Peter