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“Localhost refuses to connect” with npm start

I simply want to work on this Bootstrap project of mine, but I can't because I can't test anything on my local server. In my browser, I get the error 'Localhost refuses to connect'. And under that it says, ERR_CONNECTION_REFUSED. It's also serving it up on port 3443 automatically for some reason when I thought it usually did on port 3000. Even when I type 'localhost:3000' manually into the url bar, it still refuses to connect. I feel like this is the main part of the problem actually. I don't think I started having these problems until I downloaded McAfee. I've since disabled the McAfee Firewall and McAfee Web Advisor in the meantime. Anyway, I don't know if this helps, but here is the content of my package.json, gulpfile.js, and my bash terminal output when trying to execute 'npm start', respectively:

 

{
    "title": "Small Business",
    "name": "startbootstrap-small-business",
    "version": "4.2.1",
    "scripts": {
        "start": "node_modules/.bin/gulp watch"
    },
    "description": "A small business HTML template built with Bootstrap",
    "keywords": [
        "css",
        "sass",
        "html",
        "responsive",
        "theme",
        "template"
    ],
    "homepage": "https://startbootstrap.com/template-overviews/small-business",
    "bugs": {
        "url": "https://github.com/BlackrockDigital/startbootstrap-small-business/issues",
        "email": "**personal information omitted**"
    },
    "license": "MIT",
    "author": "Start Bootstrap",
    "contributors": [
        "David Miller (http://davidmiller.io/)"
    ],
    "repository": {
        "type": "git",
        "url": "https://github.com/BlackrockDigital/startbootstrap-small-business.git"
    },
    "dependencies": {
        "bootstrap": "4.3.1",
        "jquery": "3.4.1"
    },
    "devDependencies": {
        "browser-sync": "2.26.7",
        "del": "^4.1.1",
        "gulp": "4.0.2",
        "merge-stream": "2.0.0"
    }
}

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siddharth_r
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Re: “Localhost refuses to connect” with npm start

Please help with name of the McAfee product installed on your machine. 

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