title: Angular 6 ng serve works on Windows but not OS X
body: <p>I have an Angular 6 app that when I run on my windows 10 machine runs without issue.</p>
  
  <p>ng serve for launching the app with localhost:4200 works and the app works as expected (on any windows browser)</p>
  
  <p>I then cloned the same repo on my Mac (High Sierra).</p>
  
  <p>I run ng serve and the app compiles like it does on Windows, but when I navigate to any browser (safari, chrome, firefox) I get an ERR_CONNECTION_TIMOUT error from the browser.</p>
  
  <p>The answers I found online do not seem to work when I apply them to my app.</p>
  
  <p>I am not sure which of my files would be useful to see for this issue, I can post any specific file upon request</p>
  
  <p>This is from my package.json    </p>
  
  <pre><code>@angular-devkit/build-angular": "^0.6.8",
      "@angular/animations": "~6.0.6",
      "@angular/cdk": "^6.0.0",
      "@angular/cli": "^6.0.8",
      "@angular/common": "^6.0.6",
      "@angular/compiler": "~6.0.6",
      "@angular/compiler-cli": "~6.0.6",
      "@angular/core": "~6.0.6",
      "@angular/forms": "~6.0.6",
      "@angular/http": "~6.0.6",
      "@angular/material": "^6.0.0",
      "@angular/platform-browser": "~6.0.6",
      "@angular/platform-browser-dynamic": "~6.0.6",
      "@types/node": "^6.0.117"
  </code></pre>
  
  <p>I appreciate any insight. Thanks!</p>