执行npm install -g mip-cli失败

[aredoing]

C:\Users\Administrator>node -v
v4.4.3

C:\Users\Administrator>npm -v
2.15.1

C:\Users\Administrator>npm install -g mip-cli
npm ERR! Windows_NT 6.1.7601
npm ERR! argv "F:\soft\nodejs\node.exe" "F:\soft\nodejs\node_modules\npm
\bin\npm-cli.js" "install" "-g" "mip-cli"
npm ERR! node v4.4.3
npm ERR! npm v2.15.1
npm ERR! code ECONNRESET

npm ERR! network tunneling socket could not be established, cause=connect ECONNR
EFUSED 127.0.0.1:80
npm ERR! network This is most likely not a problem with npm itself
npm ERR! network and is related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settin
gs.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly. See: 'npm help config'

npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\Administrator\npm-debug.log