How to Fix HTTP Error 503 Service Unavailable?

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We all know that the internet is a vital part of our lives. We rely on it for many things, including entertainment, business, and work. But what if you are getting an HTTP error 503 Service Unavailable message? What does this mean? This blog post will help you understand why your computer might be getting this type of error message and how to fix it!

What is HTTP Error 503 Service Unavailable?

HTTP Error 503 Service Unavailable is a server-side error. The HTTP 503 status code means that the website you are trying to visit is currently unavailable. It’s also known as “Service Unavailable.” This error is given by Google Chrome which you are using to surf the internet.

The website might be down now, or it never existed.

Causes of HTTP Error 503 Service Unavailable

There can be several causes for this error to occur on your system. few of them are mentioned here:-

  • Servers might be down
  • Browser cache issue
  • Incompatible browser plugin running on the system
  • Scripts or ActiveX components not working properly
  • Firewall or antivirus blocking the website
  • Hardware issue on your system

How to Fix the HTTP Error 503 Service Unavailable?

Seven methods are available to fix the HTTP Error 503 Services So let’s get started:

1. Restart your router/modem

This method is most likely to work because, when you are trying to access a website, your internet connection will be stuck with that particular website.

2. Use Proxy Server

We all know that many free proxy servers are available on the net, but some of them are not working correctly. That is why we recommend using “HMA Pro VPN,” which has every feature required for safe and secure browsing along with unlimited bandwidth. You can use their free trial version to check whether it works or not. If you want even more features, go ahead with the paid version since it’s only $4/mo, making this service best in class.

3. Reset the TCP/IP stack in the system

This is a straightforward and quick method to fix this error. Just follow these steps:

– Press Start + Run (Windows key + R Key) and enter “CMD” to open our command prompt.

– Now type “netsh int IP reset” without quotes and press Enter.

– Restart your computer for changes to take effect. You will no longer face any HTTP Error 503 Service Unavailable problem on the Google Chrome browser!   

4. Use Command Prompt (Command Line)

If the above methods fail, then you can try this one. It too should work if the former did not make your things better. Follow these steps carefully to complete this process.

  • Press the Windows key + R (Windows key + R) at once to open a command prompt.
  • When Command Prompt opens, enter “netsh Winsock reset” without quotes and press Enter.
  • Restart your computer after completing this process; it should fix HTTP Error 503 Service Unavailable issue on the Google Chrome browser!

5. Reset Chrome Browser

If you are still facing the same problem, try this one; it should work because sometimes internal issues occur with Google Chrome which can be fixed by simply resetting the browser. It means that all your saved passwords will disappear, but don’t worry if you have synced them with your Gmail account, then they will automatically restore after you log in with the same Gmail account.

  1. Open a new tab and type ” chrome://settings/ ” in the address bar without quotes, and press Enter.
  2. Now click on ” Reset browser settings. “ A confirmation box will appear, just move the mouse pointer over the “Reset” button and click it.

6. Check your Personal Security Software

There can be few chances that the issue is with your security software, so we recommend you to check and disable it temporarily and try accessing the website. This will tell you whether it’s a hardware or software issue. If the HTTP Error 503 Service Unavailable error persists even after disabling it, then try uninstalling it and installing it back (if you use Norton, then follow these steps:

  • Disconnect from the internet.
  • Open the “Symantec Endpoint Protection Manager” and go to “Settings.”
  • Click on “Norton Management” in the left side menu and choose “Preferences.”
  • Now scroll down a bit; you will see a box for “Norton Management Agents” or something similar. Click on the box and choose the “Disable” option from the drop-down menu.
  • Uninstall the Norton Removal Tool by going to Control Panel > Programs and Features > Searching “Norton.”

7. Disable your Firewall

Yes, you read it right; if your firewall isn’t allowing you to access a secure website, how will it enable you to access any website. So don’t worry, disable it temporarily and try accessing the website. If the HTTP 503 error persists after disabling it, enable it back and uninstall your antivirus software from the computer.

Most Common errors i.e Http Error 403. If you are facing an issue on your chrome browser, then you must checkout this blog on how to fix Http Error 403 | You Don’t have Authorization to View this Page (FIXED)


HTTP Error 503 Service Unavailable is a widespread error in Google Chrome when it fails to load a secure website. We have provided you with the best possible solutions available on the internet so you can fix this quickly. So do not forget to share this post with your friends.

Frequently Asked Questions:-


1. What are the best alternative solutions for fixing HTTP Error 503 Service Unavailable?

The Seven methods mentioned above are the best available among all others. But, if you have any other ideas about this, then please feel free to comment below.

2. What do I do if none of these methods worked or solved my problem?

If none of the methods mentioned in this blog post helped you solve your problem, then you should take a look at our blog post “What To Do When Google Chrome Fails To Load A Webpage.” It has some other helpful ideas that can help you out!

3. Which browser other than Google Chrome is working fine?

Mozilla Firefox + Tor Browser Bundle is working fine.

4. How to fix this error permanently?

The best option is to switch to Mozilla Firefox + Tor Browser Bundle since it’s the only browser currently available with no such error!

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