我安装了软件传输，但无法设置。以下行是从/var/log/daemon.log文件中复制的：
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Dec 22 10:52:46 raspberrypi transmission-daemon[1904]: Using settings from "/var/lib/transmission-daemon/info" (daemon.c:488)
Dec 22 10:52:46 raspberrypi transmission-daemon[1904]: Saved "/etc/transmission-daemon/settings.json" (bencode.c:1731)
Dec 22 10:52:46 raspberrypi transmission-daemon[1904]: Loaded 1 torrents (session.c:1937)
Dec 22 10:53:01 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Could not connect to tracker (announcer.c:994)
Dec 22 10:53:01 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Retrying announce in 301 seconds. (announcer.c:1003)
Dec 22 10:53:01 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Could not connect to tracker (announcer.c:994)
Dec 22 10:53:01 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Retrying announce in 324 seconds. (announcer.c:1003)
Dec 22 10:53:01 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Could not connect to tracker (announcer.c:994)
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Dec 22 12:34:29 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Starting IPv4 DHT announce (firewalled, 168 nodes) (tr-dht.c:574)
Dec 22 12:36:18 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Connection failed (announcer.c:994)
Dec 22 12:36:18 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Retrying announce in 300 seconds. (announcer.c:1003)
Dec 22 12:37:06 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip IPv4 DHT announce done (tr-dht.c:542)
Dec 22 12:42:24 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Connection failed (announcer.c:994)
Dec 22 12:42:24 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Retrying announce in 910 seconds. (announcer.c:1003)
Dec 22 12:51:54 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Scrape error: Connection failed (announcer.c:1259)
Dec 22 12:51:54 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Retrying scrape in 1859 seconds. (announcer.c:1268)
Dec 22 12:58:38 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Connection failed (announcer.c:994)
Dec 22 12:58:38 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Retrying announce in 3630 seconds. (announcer.c:1003)
Dec 22 13:00:06 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip Starting IPv4 DHT announce (firewalled, 168 nodes) (tr-dht.c:574)
Dec 22 13:02:58 raspberrypi transmission-daemon[1904]: FILE_TO_DOWNLOAD.zip IPv4 DHT announce done (tr-dht.c:542)
我尝试在 Windows 8 上使用相同的 torrent 文件通过 uTorrent 下载该文件，并且它有效。
守护进程似乎transmission无法连接到跟踪器。我缺少什么？