title: npm install fails after npm-check-updates
body: <p>The npm install command fails for the following package.json:</p>
  
  <pre><code>{
    "name": "xxxxxxxxx",
    "version": "0.6.8",
    "description": "xxxxxx",
    "main": "gulpfile.js",
    "scripts": {
      "test": "echo \"Error: no test specified\" &amp;&amp; exit 1"
    },
    "repository": {
      "type": "git",
      "url": ""
    },
    "keywords": [
      "gulp",
      "react",
      "webpack",
      "boilerplate",
      "ES6",
      "ES2015",
      "babel",
      "mocha",
      "hmr",
      "express",
      "sass"
    ],
    "author": "Punkbit",
    "license": "WTFPL",
    "bugs": {
      "url": "xxxxxx"
    },
    "homepage": "xxxxxx",
    "devDependencies": {
      "babel-core": "^6.13.2",
      "babel-eslint": "^7.1.1",
      "babel-loader": "^6.2.5",
      "babel-preset-es2015": "^6.13.2",
      "babel-preset-react": "^6.11.1",
      "chai": "^3.5.0",
      "chalk": "^1.1.3",
      "cheerio": "^0.22.0",
      "compression-webpack-plugin": "^0.3.2",
      "css-loader": "^0.26.1",
      "enzyme": "^2.4.1",
      "extract-text-webpack-plugin": "^1.0.1",
      "figlet": "^1.2.0",
      "file-loader": "^0.9.0",
      "gulp": "^3.9.1",
      "gulp-clean": "^0.3.2",
      "gulp-git": "^1.12.0",
      "gulp-mocha": "^3.0.1",
      "gulp-plumber": "^1.1.0",
      "gulp-util": "^3.0.7",
      "html-webpack-plugin": "^2.22.0",
      "jsdom": "^9.5.0",
      "lodash": "^4.15.0",
      "mocha": "^3.0.2",
      "mocha-jsdom": "^1.1.0",
      "node-sass": "^4.3.0",
      "open": "0.0.5",
      "popmotion": "^5.0.18",
      "react": "^15.3.1",
      "react-addons-test-utils": "^15.3.1",
      "react-dom": "^15.3.1",
      "react-hot-loader": "^3.0.0-alpha.8",
      "react-redux": "^5.0.2",
      "react-router": "^3.0.2",
      "react-router-redux": "^4.0.5",
      "redux": "^3.5.2",
      "redux-devtools": "^3.3.1",
      "redux-devtools-dock-monitor": "^1.1.1",
      "redux-devtools-log-monitor": "^1.1.1",
      "redux-mock-store": "^1.2.0",
      "redux-thunk": "^2.1.0",
      "sass-loader": "^4.0.0",
      "style-loader": "^0.13.1",
      "testdom": "^2.0.0",
      "webpack": "^1.9.11",
      "webpack-dev-middleware": "^1.9.0",
      "webpack-dev-server": "^1.9.0",
      "webpack-hot-middleware": "^2.15.0",
      "zombie": "^5.0.5"
    },
    "dependencies": {
      "babel-polyfill": "^6.22.0",
      "express": "^4.14.0",
      "superagent": "^3.3.2"
    },
   "engines" : {
      "node" : "&gt;=7.4.0",
      "npm": "&gt;=4.0.5"
    }
  }
  </code></pre>
  
  <p>The node version is:</p>
  
  <pre><code>node -v
  v6.6.0
  
  npm -v
  3.30.3
  </code></pre>
  
  <p>The error log:</p>
  
  <pre><code>npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/aws4/-/aws4-1.5.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/boolbase/-/boolbase-1.0.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/buffer/-/buffer-4.9.1.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/code-point-at/-/code-point-at-1.1.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/ws/-/ws-1.1.1.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/which/-/which-1.2.12.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/tough-cookie/-/tough-cookie-2.3.2.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/repeating/-/repeating-2.0.1.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/orchestrator/-/orchestrator-0.3.8.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/function.prototype.name/-/function.prototype.name-1.0.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/domelementtype/-/domelementtype-1.3.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/dom-serializer/-/dom-serializer-0.1.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/entities/-/entities-1.1.1.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/findup-sync/-/findup-sync-0.4.3.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/domutils/-/domutils-1.5.1.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/domhandler/-/domhandler-2.3.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/is-absolute/-/is-absolute-0.2.6.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/lodash.assign/-/lodash.assign-4.2.0.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/nth-check/-/nth-check-1.0.1.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/ms/-/ms-0.7.2.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  npm ERR! fetch failed http://deveng.io/nexus/content/groups/NPM/async/-/async-0.9.2.tgz
  npm WARN retry will retry, error on last attempt: Error: connect ETIMEDOUT 10.185.1.203:80
  </code></pre>
  
  <p>This started happening after I updated all the packages by using:</p>
  
  <pre><code>npm-check-updates
  </code></pre>
  
  <p>So, the error doesn't happen in the machine where I initially ran npm-check-updates and updated the packages. But happening everywhere else.</p>
  
  <p>I guess that if I update node to the latest version, in my case through brew, I should fix the issue but I want to understand why this fails and how to detect that to prevent this from happening in the future!</p>
  
  <p>+++ UPDATE +++</p>
  
  <p>So, I decided to run</p>
  
  <pre><code>brew install nvm
  </code></pre>
  
  <p>Installed the latest node version through nvm</p>
  
  <pre><code>nvm install 7.4.0
  </code></pre>
  
  <p>But the issue persists! At the machine where I can't replicate the issue has node 7.4.0 and npm 4.0.5. So, I'm clueless about what's going on!</p>