Name Server Host Not Found: Troubleshooting Guide for Dev

Hello Dev! Are you having trouble accessing a website due to the error message “Name Server Host Not Found”? This error can be frustrating, especially when you need to access a website urgently. However, there are several reasons why this error can occur, and in this article, we will discuss what it means, why it happens, and what you can do to fix it. So, sit back, grab a coffee, and let’s get started!

What is the “Name Server Host Not Found” error?

The “Name Server Host Not Found” error is a message that appears on your web browser when it tries to connect to a website but cannot find the correct domain name system (DNS) server that is associated with it. A DNS server is responsible for translating human-readable domain names, such as “google.com,” into machine-readable IP addresses that are used to access the website.

When your web browser cannot find a DNS server, it cannot establish a connection with the website, resulting in the “Name Server Host Not Found” error.

Why does the “Name Server Host Not Found” error happen?

There are several reasons why the “Name Server Host Not Found” error can occur. Here are some of the most common reasons:

How to fix the “Name Server Host Not Found” error?

Step 1: Check the domain name

The first step in fixing the “Name Server Host Not Found” error is to double-check the domain name you have entered. Make sure that you have entered the correct domain name and that there are no typos. If you are unsure of the correct domain name, try searching for it on a search engine.

Step 2: Clear your browser cache

If the domain name is correct, the next step is to clear your browser’s cache. Cached data can sometimes interfere with DNS resolution, resulting in the “Name Server Host Not Found” error. Follow the instructions below to clear your browser’s cache:

• Google Chrome: Click on the three dots in the top-right corner of the browser. Click on “More tools,” then “Clear browsing data.” In the “Time range” dropdown menu, select “All time.” Check the box next to “Cached images and files,” then click on “Clear data.”
• Firefox: Click on the three lines in the top-right corner of the browser. Click on “Library,” then “History,” then “Clear recent history.” In the “Time range to clear” dropdown menu, select “Everything.” Check the box next to “Cache,” then click on “Clear now.”
• Safari: Click on “Safari” in the top-left corner of the screen. Click on “Preferences,” then “Privacy.” Click on “Manage Website Data,” then click on “Remove All.”

Step 3: Disable firewall or antivirus software

If clearing your browser cache does not fix the error, the next step is to disable any firewall or antivirus software on your computer temporarily. Sometimes, these programs can block access to the DNS server, resulting in the “Name Server Host Not Found” error. Consult the documentation for your firewall or antivirus software for instructions on how to disable it temporarily.

Step 4: Restart your modem and router

If the above steps do not resolve the issue, the next step is to restart your modem and router. Sometimes, internet connectivity issues can cause the “Name Server Host Not Found” error. Turn off your modem and router, wait for 30 seconds, then turn them back on.

Step 5: Contact your internet service provider

If the error still persists after trying the above steps, the issue may be with your internet service provider (ISP). Contact your ISP and explain the issue to them. They should be able to help you resolve the issue.

Frequently Asked Questions (FAQ)

Q: What does “Name Server Host Not Found” mean?

A: The “Name Server Host Not Found” error means that your web browser cannot find the DNS server associated with the website you are trying to access.

Q: What causes the “Name Server Host Not Found” error?

A: The error can be caused by several issues, including incorrect domain name, issues with DNS servers, firewalls or antivirus blocking access, and internet connectivity issues.

Q: How do I fix the “Name Server Host Not Found” error?

A: To fix the error, you can try checking the domain name, clearing your browser cache, disabling firewall or antivirus software, restarting your modem and router, and contacting your ISP.

Q: How can I prevent the “Name Server Host Not Found” error from happening?

A: To prevent the error from happening, make sure you enter the correct domain name when accessing a website, keep your browser cache clear, and ensure that your firewall or antivirus software is not blocking access to the DNS server.

Conclusion

In conclusion, the “Name Server Host Not Found” error can be frustrating, but it can be fixed by following the troubleshooting steps outlined in this article. Remember to check the domain name, clear your browser cache, disable firewall or antivirus software, restart your modem and router, and contact your ISP if necessary. By doing this, you can quickly resolve the issue and get back to accessing the websites you need.