mpc Failed to resolve host name

我发现只要有线连接一断开，mpc就和mpd断开连接了，没法控制mpd播放了，
在终端运行提示
error:Failed to resolve host name
请问这该怎么解决

下面是mpd.conf

music_directory "~/music"
playlist_directory "~/.mpd/playlists"
db_file "~/.mpd/mpd.db"
log_file "~/.mpd/mpd.log"
pid_file "~/.mpd/mpd.pid"
state_file "~/.mpd/mpdstate"
user "ziyuan"
input {
plugin "curl"
# proxy "proxy.isp.com:8080"
# proxy_user "user"
# proxy_password "password"
}
audio_output {
type "alsa"
name "My ALSA Device"
## device "hw:0,0" # optional
## format "44100:16:2" # optional
## mixer_device "default" # optional
mixer_control "PCM" # optional
## mixer_index "0" # optional
}

...
user "ziyuan"
port "6600"
input {
...

加上了这行，还是这样啊

...
user "ziyuan"
bind_to_address "localhost"
port "6600"
input {
...

/etc下有个示例文件mpd.conf.example，好好看一下