Google Chrome is the most used web browser on all Windows platforms but sometime we are getting err_spdy_protocol_error reddit errors, As we know that It has got most interesting features that make it the number one browser in the market at present time but sometimes it is giving err_spdy_protocol_error chrome.

You know Internet users mostly rely on Google Chrome to surf for the stuff they are interested in. While using the browser, it is common to run across few errors that could put a halt to the browsing all at once. This could not only put breaks to the browsing, but also spoil the browsing experience of the loyal internet surfers.

There are many different types of errors that pop up while browsing the internet and each error has a strong reason to pop up. Many unexpected errors pop up while using Google Chrome as reported by its users. Few errors don’t even show up a warning message before popping up, which worries most of the surfers.

Today, we will be talking about the most common error that is seen in Google Chrome i.e., ERR_SPDY_PROTOCOL_ERROR. This error usually pops up while using highly visited websites like Gmail, YouTube, Facebook etc.

This error makes it difficult to access any of those websites through the Chrome browser. It needs to be addressed in order to use the browser with good user experience.

There are many ways to fix the error and we are going to talk about them today in our article. We are going to tell you how to fix this error, but before that let us know why after all this error pops up.



Before knowing how to fix this error, let us know why it pops up and the reasons behind it. This error pops up when you are accessing certain HTTP page on the Chrome browser. The SPDY is a protocol which is meant to help the browser load the pages faster.

This protocol also aids in protecting the browser. The faster loading of the web pages by the protocol will automatically enhance the security. Ever since Google has withdrawn is support for SPDY protocol, this error has been popping on the browsers.

The most common reasons for the occurrence of this error include outdated Google Chrome browser, antivirus or blocking of firewall.

The errors that pop up can occur due to many reasons. Mostly, the errors occur due to the server, or change of settings in your PC etc. Today, we shall discuss the most prominent ways to fix this error in Google Chrome browser. Let us see how to fix this error.



We are going to discuss here in this article 9 different and effective ways to fix this error that is commonly seen in Chrome browser. These different ways will assist you to fix the error instantly. Each and every method is unique in its own way and if one doesn’t work, you can jump and try the other one to get the error fixed.

If you don’t find any of the method useful, you can use another to fix the error. We clearly explained below each of the ways to fix the error. You can use any of the ways to fix the error and to use the browser to experience seamless browsing. Read on!

1. Update Google Chrome Browser

The most common reason for the error to occur is due to the outdated Google Chrome browser. By now, the lights in your head would have been lit up. You can simply update the Google Chrome Browser to a newer version to get rid of the error.

Make sure you update the browser from a trusted source to avoid any further security complications or errors. If the reason for the error occurrence is because of the outdated Chrome browser, you can easily fix it by updating it to the latest version. As soon as you update the browser, you will get access to the browser. To update the browser, follow the steps below.

  • Go to the Settings of the Browser present in top right corner.
  • Click on About and check for Latest Update.
  • You can go directly by typing chrome://settings/help

Update Google Chrome Browser

2. Flush Sockets

If the reason behind the deployment of the error is due to the sockets, then you can use this fix to get rid of the error. Just follow the steps we have listed below to address the error instantly.

  • Copy the below provided link in the address bar of the browser.


Flush Sockets

  • The link will open in a new tab.
  • From the drop-down menu, choose ‘Flush Sockets’ option.
  • Again tap on ‘Flush Socket Pools’ option.
  • This will flush out all the sockets that are causing the error while using the browser.

3. Go for an Antivirus

Sometimes you might see this error even if your browser is affected by any sort of a virus or malware. There are numerous antivirus softwares in the market that help protect the web from viruses and malwares.

Out of many antivirus softwares, Avast is one of the popular and most used antivirus software. It has best web protection tool and you can address the SPDY error by using this antivirus. If you install this antivirus software, it will take care of the error all by itself.

Wherever the error pops up, Avast will address it all by itself. You can happily use Google Chrome browser after that. All you need to do is just add the webpage that shows the error to the Avast exclusion list.


  • Launch Avast.
  • Go to Settings and tap on ‘Active Protection’.
  • Tap on ‘Customize for web shield’
  • Add the web pages that show the error to the exclusion list of Avast.

4. Firewall Settings

We have already discussed about the antivirus earlier. If you are wondering what we are going to address in this para, then you have to read on first. Though you use the best antivirus, you need to make sure that your device has the https scanning option turned on.

We suggest you to do this because the websites that have https would likely be excluded from the antivirus exclusion list, causing the error. So, make sure that you have added every single blocking website on the exclusion list of your antivirus.

Firewall Settings

5. Clear Cookies and History

The reason for the occurrence of the error is also due to the overloaded cookies, cache and history on the Chrome browser. To get rid of this error, you need to clear all the cookies from the browser. It is pretty easy to do so.

  • Open the Chrome Browser and click on Settings.
  • Click on the option that reads ‘Show Advanced Settings’
  • Scroll down to find ‘Clear Browsing Data’ option and click on it.

Clear Cookies and History

  • On clicking the option, a small window pops up with different options like:
  • Browsing history
  • Download history
  • Cached images and files
  • Cookies and other site data
  • Passwords
  • Autofill form data
  • Hosted app data
  • Media licenses
  • Choose Cached images, files and Cookies and other site data option and uncheck remaining options.
  • Set clear the following items to ‘the beginning of time’ option and click on ‘Clear Browsing Data’ which clears the entire history of the browser from the very beginning of time.
  • After that, close the browser and open it again to get rid of the error from popping up. After restarting the browser, you will no more see the error again.

6. Incognito Mode

If you still get the same SPDY error, you can fix it by following this method. If none of the above methods worked for you to fix the error, then give this method a try. Open the website in the Chrome browser in incognito mode.

Chrome is the browser that is highly used by Widows users. It has tons of interesting features to offer to its users. Also, it is the fastest browser available till date. The browser stores the data in the form of web pages and websites, which you can open in the form of history. The incognito mode will help you avoid others peeping into your Chrome history.

If you want to maintain perfect privacy of your data and the Chrome history then you can simply open your browser in incognito mode. When you open the browser in incognito mode and surf the stuff, it won’t store any of the active sessions you have processed.

  • To open the browser in incognito mode,
  • you need launch the browser and press Ctrl+Shift+N.

Incognito Mode

7. Chrome Cleanup Tool

Chrome has launched an excellent cleanup tool to remove all the suspicious files from the Windows PC. Chrome Cleanup tool will scan entire PC in search of any such suspicious files that could be the cause of the error and removes them instantly.

It does thorough scanning of the entire device to find the errors and removes them. Users can run this cleanup tool to remove any such suspicious files from their device and thereby the error too. It is so very easy to install Chrome Cleanup Tool on PC.

It works smoothly with almost all Windows platforms like XP, 7, 8, 8.1, and 10. The tool is mainly designed to remove the files that cause the browser to stop working.

no program

Once your run this tool on your PC, you can avoid such errors from the device and the error as well. The Chrome Cleanup tool is available for download in the Google Play Store for free download. The tool gets downloaded instantly onto your device and you can easily run it on your device. This tool works as an extension to the Chrome browser.

8. Flush DNS

You can also fix this SPDY error in Chrome browser by flushing the DNS. Fixing it could instantly make the error disappear from the web browser. Domain Name Server could be one of the causes of err_spdy_protocol_error in Google Chrome browser.

The reason is that, the cache of DNS preserves the IP addresses of the web servers. It stores all the web addresses of the web pages that are recently visited by the user on the Chrome web browser.

When the location of the web server changes prior to the entry into the DNS cache updates, it is not possible for the user to access the website. This in turn results in popping up of the error.

Flush DNS

Whenever you run across lots of HTML 4.4 error codes, the first and foremost thing you need to do is clear the DNS cache. After clearing the data on the DNS cache, the PC will intimate the same to the name servers asking them to save new DNS data.

This way, the users can flush the DNS cache easily in no time. The process for clearing the DNS cache is same for all versions of Windows like XP, Vista, 7, 8, and 10. The same process can be followed on MAC devices too. Below are the steps on how to flush the DNS cache.

  • Open the Command Prompt.
  • Input ipconfig/flushdns and click on enter button.
  • A new window opens and you need to renew the IP there. To renew the IP, follow the steps.
  • Open Command Prompt.
  • Input ipconfig/release and click on enter.
  • Once again input ipconfig/renew and click on enter.
  • This renews the IP address.

Other than the above reasons why the SPDY error occurs in the Chrome browser, there are some other reasons as well. This error could also popup while using the Zenmate VPN on the PC. When i was visited on site getting same issue but now fixed.

Final Verdict

So, this is how you fix the ERR_SPDY_PROTOCOL_ERROR in Google Chrome browser. You can try out any of the methods you would like to try to fix this error. Not all fixes could help you address the error; only few will work for you.

So, if you don’t get the error solved with one fix, then go for another. We hope you got to fix this error that is messing with your Chrome browsing experience. Make sure to leave us a comment below once the error got addressed using any of the above methods. Happy browsing!!!


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