node.js - npm install express 或者安装cnpm都是这个样子，是公司网络的原因么

Question

$ npm install -g cnpm --registry=https://registry.npm.taobao.org
npm ERR! Windows_NT 10.0.10586
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" "install" "-g" "cnpm" "--registry=https://registry.npm.taobao.org"
npm ERR! node v6.0.0
npm ERR! npm v3.8.6
npm ERR! code ETIMEDOUT
npm ERR! errno ETIMEDOUT
npm ERR! syscall connect

npm ERR! network connect ETIMEDOUT 114.55.80.225:443
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 settings.
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:Usersv_wbzhwangnpm-debug.log

Answer 1

網路超時有很多可能性，不好說！
1.可能是對方伺服器無法連線
2.可能你公司對網路做限制
3.你本地自己裝了什麼元件如(越牆)

Answer 2

不排除這個原因，之前也試過有時候早上下載安裝一下子就好了，有時候整個下午都沒裝成功