Blue and gray Network Cables

Troubleshooting Network Connectivity

Troubleshooting Network Connectivity

Welcome to our comprehensive guide to troubleshooting network connectivity issues. In this article, we’ll cover the most common reasons why your network connection may be failing and provide you with easy-to-follow solutions that will help you quickly get back online.

Before we dive into the specifics of troubleshooting network connectivity, let’s start by defining what we mean by “network.” A network is a group of devices that are connected together and able to communicate with each other.

This can include devices such as computers, printers, smartphones, and more. When we talk about network connectivity, we’re referring to the ability of these devices to communicate with each other over a network connection.

Now, let’s get started with our troubleshooting guide. Below are some of the most common issues that can cause network connectivity problems and the steps you can take to resolve them.

Network Troubleshooting Methods:

Check Your Network Cable Connections

Check your physical connections, Make sure that all cables, wires, and devices are properly connected and powered on.

network cables

This includes your modem, router, and computer. If you’re using Wi-Fi, check to see if your device is connected to the right network and that the signal strength is strong enough.

Restart your devices

Sometimes all you need is a simple reboot.

common connected network devices

Turn off your modem, router, and computer (or device), wait a few seconds, and then turn them back on. This can often fix connectivity issues.

Check your network settings

Go to your network settings and make sure that your device is set up to connect to your network properly.

network settings

Double-check your password and security settings to make sure they’re correct.

Use a Network Diagnostic Tool

Most operating systems have built-in network diagnostic tools that can help you identify and fix connectivity issues.

network troubleshooter

These tools can scan your network and identify any problems that might be causing issues.

To Access the Network Diagnostic Tool
  • Go to your Start menu and type “network troubleshooter” in the search bar.
  • You should see an option called “Identify and repair network problems”
  • Click on that and follow the on-screen instructions.

The Network Diagnostic Tool will run a series of tests to identify any connectivity issues, such as problems with your IP address, DNS settings, or firewall. It will then provide suggestions on how to fix these issues.

If the Network Diagnostic Tool isn’t able to fix the issue, it will usually provide you with a detailed report that you can take to your internet service provider or IT support team for further assistance.

Test your Network Speed

If you’re experiencing slow speeds, run a speed test to see how fast your network is.

Google Fiber Speed Test Website

You can use websites like speedtest.net or Google’s speed test to check your download and upload speeds.

Check for software updates

Make sure that your computer or device has the latest software updates installed.

network adapter drivers

Sometimes, outdated software can cause connectivity issues. You can try to update network drivers this can sometimes fix network connection issues.

To Update Network Drivers
  • Type in the Taskbar Search box Type: Device manager –
  • Select Network Adapters in device list –
  • Click on Your Network Adapter Name –
  • Right Click – Select Update Driver – Just Follow the On screen Prompts –
  • You can Either Update your Drivers Online or If You have Your Motherboards DVD Utility( you can update your network adapter manually).

Check your firewall settings

Your firewall can sometimes block your internet connection, so make sure it’s not blocking any necessary connections.

windows firewall settings
How to Check Firewall Settings
  • Click on the “Start” menu in the bottom left corner of your screen.
  • Type “Firewall” into the search box and select “Windows Defender Firewall” from the search results.
  • In the left-hand menu, click on “Allow an app or feature through Windows Defender Firewall.”
  • Here you will see a list of apps and features that are currently allowed or blocked by the firewall. You can click on each app or feature to change its settings.
  • If you want to add a new app or feature to the list, click on the “Change settings” button at the top right of the screen.
  • You can then click on the “Allow another app” button to add a new app to the list.
  • If you want to block an app or feature, simply uncheck the box next to its name in the list.

You can usually adjust your firewall settings in your device’s security settings.

Use a Different Device to Connect

If you’re still having trouble connecting, try connecting to your network with a different device.

common connected network devices

If the other device can connect without issue, then the problem might be with the original device.

Check with your ISP (internet service provider)

If you’ve tried everything and you’re still having trouble, it might be time to contact your internet service provider.

They can help you identify and fix any connectivity issues on their end. If the problem is at there end they can easily fix the issue through the phone.

Check your DNS settings

DNS (Domain Name System) settings can sometimes cause connectivity issues. You can try changing your DNS settings to see if that helps. Google’s Public DNS or OpenDNS are popular DNS alternatives.

Windows DNS settings
How to Check DNS Settings:
  • Click on the “Start” menu in the bottom left corner of your screen.
  • Type “Control Panel” into the search box and select it from the search results.
  • In the Control Panel, click on “Network and Internet” and then click on “Network and Sharing Center”.
  • On the left-hand side of the screen, click on “Change adapter settings”.
  • Right-click on the network adapter you are using (usually called “Local Area Connection” or “Wi-Fi”) and select “Properties”.
  • Scroll down and select “Internet Protocol Version 4 (TCP/IPv4)” and click on “Properties”.
  • Here you will see your DNS settings. If “Obtain DNS server address automatically” is selected, then your computer is using the DNS settings provided by your internet service provider (ISP). If “Use the following DNS server addresses” is selected, then your computer is using custom DNS settings.
  • You can change your DNS settings by selecting “Use the following DNS server addresses” and entering the DNS server addresses provided by your DNS provider. There are many public DNS providers available, such as Google DNS ( and and OpenDNS ( and
  • Once you have made any changes, click “OK” to save your settings.


Troubleshooting network connectivity issues can be a frustrating and time-consuming process. However, by following the steps outlined in this article, you should be able to quickly and easily identify and resolve the most common issues that can cause connectivity problems. Remember to always check your network settings, restart your router and modem, update your network drivers, check for malware or viruses, check your firewall settings, and contact your internet service provider if necessary.

Leave a Reply

Your email address will not be published. Required fields are marked *

Seraphinite AcceleratorOptimized by Seraphinite Accelerator
Turns on site high speed to be attractive for people and search engines.