Noob problems. Folowed instructions Wizt's post. Btsync is runing on my Buffalo Linkstation LS-XHL, Can't access WebUI though. My config file: { "device_name": "My Sync Device", "listening_port" : 8080, // 0 - randomize port /* storage_path dir contains auxilliary app files if no storage_path field: .sync dir created in the directory where binary is located. otherwise user-defined directory will be used */ "storage_path" : "/home/user/.sync",// uncomment next line if you want to set location of pid file// "pid_file" : "/var/run/btsync/btsync.pid", "check_for_updates" : true, "use_upnp" : false, // use UPnP for port mapping/* limits in kB/s 0 - no limit*/ "download_limit" : 0, "upload_limit" : 0, /* remove "listen" field to disable WebUI remove "login" and "password" fields to disable credentials check*/ "webui" : { "listen" : "0.0.0.0:8080", }/* !!! if you set shared folders in config file WebUI will be DISABLED !!! shared directories specified in config file override the folders previously added from WebUI.*//* , "shared_folders" : [ {// use --generate-secret in command line to create new secret "secret" : "MY_SECRET_1", // * required field "dir" : "/home/user/bittorrent/sync_test", // * required field// use relay server when direct connection fails "use_relay_server" : true, "use_tracker" : true, "use_dht" : false, "search_lan" : true,// enable SyncArchive to store files deleted on remote devices "use_sync_trash" : true,// specify hosts to attempt connection without additional search "known_hosts" : [ "192.168.1.2:44444" ] } ]*/// Advanced preferences can be added to config file.// Info is available in BitTorrent Sync User Guide.} My log file: [20140611 19:08:04.211] total physical memory -1 max disk cache 2097152[20140611 19:08:04.213] Using IP address 192.168.1.5[20140611 19:08:04.214] Unable to listen for HTTP traffic on port 8888[20140611 19:08:04.215] Loading config file version 1.2.67[20140611 19:08:05.369] UPnP: Device error "http://192.168.1.35:2869/upnphost/udhisapi.dll?content=uuid:677f837c-c1e6-436c-a6e3-984c43289498": (-2) [20140611 19:09:05.239] Received shutdown request via signal 15[20140611 19:09:05.240] Shutdown. Saving config sync.dat Restarted many times trying various port and setting combination. But every time I see port 8888 in log file. Maybe there's a copy of it elsewhere and BTSync uses it? 8080 port is forwarded. What did I miss?