The err_spdy_protocol_error is one of the common errors that faced by every Chrome user out there. You are using your browser, and suddenly, you encounter and face that what causes err_spdy_protocol_error. And if you are facing this error repeatedly, then the question is how to fix err_spdy_protocol_error?

Well, in this article, I am going to talk about the steps that you can take to get rid of this error. But first, let’s just know what this error is all about. So here we go with how to fix err_spdy_protocol_error:

What exactly is the ERR_SPDY_PROTOCOL_ERROR error?

The error mainly causes because of SPDY PROTOCOL, which was designed to help load web pages more quickly to your web browser. However, when the website fails to load in a specific amount of time, it returns with the err_spdy_protocol_error and know failed to load resource err_spdy_protocol_error 2000.

And there are quite a lot of things that could possibly be the culprit behind this error. Some of the common ones are the:

  • Antivirus program installed on your computer.
  • Outdated Google Chrome Browser.
  • Your Computer’s Firewall is causing the error.

Also, this error mostly occurs whenever you try to Google owned websites like YouTuber or blogger.

How to fix the ERR_SPDY_PROTOCOL_ERROR error?

 1. Reload the Browser:

One of the quickest fixes that you can try out is reloading the browser. There is no doubt that it is the easiest way to resolve the issue also with other os like err_spdy_protocol_error android.

To reload the website page, you can simply hit the refresh button from your browser. Or press F5 from your keyboard. This would make the SPDY PROTOCOL error 2000 program load all over again or with err_spdy_protocol_error wordpress.

Even after restarting if you see the same error, then close the Google chrome browser completely. And then restart it again. And this would fix the error.

2. Make Sure Chrome Is Up-to-date

One of the main reasons behind the err_spdy_protocol_error chrome is the outdated browser. And if you have not updated your browser, then you can check and update it by following the below steps with spdy protocol error nginx.

Step 1: First of all, launch your Chrome browser.

Step 2: Then click on the three dots from the right hand corner of your browser and go to the Customize and Control Google Chrome menu.

Step 3: Now choose Help and then go About Google Chrome.

Step 4: Now, Google Chrome will automatically get updated to the new version.

Step 5: Finally, when the update is completed, restart the browser, and you should no longer get to see the same error again and also in developing like err_spdy_protocol_error angular.

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3. Clean your Browser Cache

Even after restarting your browser, if you still get to see the same ERR_SPDY_PROTOCOL_ERROR iis. Then there is a high chance that the error is causing because of some corrupted cache files. Cache files are created to load a website faster, and it could be an issue too. To clear cache, you can follow these steps:

Step 1: First of all, you have to launch Google Chrome. Then click on the three dots from the right hand corner.

Step 2: From there, go to the settings.

Step 3: Now scroll down and click on Advanced.

Step 4: Then, under the Privacy and security settings, you will find the Clear Browsing Data option, click on it or in browser like err_spdy_protocol_error firefox.

Step 5: Finally, click on the Clear data button, and you are all done.

4. Add the Websites to Your Antivirus or Firewall Do Not Block List

Are you only getting the Privacy and security whenever you are trying to visit some specific website? If yes, then there is a high chance that your Antivirus or Firewall program is interfering whenever you are browsing the internet spdy protocol error iis. And you could easily solve this error by adding the website to your Antivirus or Firewall program and also with. For this, you have to follow these steps:

Step 1: First of all, you will need to verify that you are only getting the error for a specific website.

Step 2: Then, you will need to find the option on your Antivirus application and then enter the URL in there. Generally, this can be found under the protection option only. However, each and every antivirus and firewall program is different. You can Google or read some help guide to find the feature or with spdy_protocol_error. In a browser like chrome spdy protocol error.

Step 3: Finally, enter the website URL and check if it has solved the issue for you or not.

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5. Clear Chromes DNS Cache and Sockets Cache

If you visit risky websites, then there is a high chance that your cache can get corrupted and may lead to loading issues. However, to fix this, you can follow the below steps:

Step 1: First of all, type down chrome://net-internals/#dns into the Chrome search bar to access the Chrome DNS page.

Step 2: Next, hit the “Clear host cache” button.

Step 3: Then, you have to type down chrome://net-internals/#sockets into the Chrome search bar to access the Chrome sockets page.

Step 4: Click on the “Flush socket pools” button.

Step 5: Once you are done with both of the steps, you will be able to access the website without any errors.

6. Flush the Windows 10 DNS Cache

In the end, you can flush the Windows 10 cache. Just like your Chrome browser, Windows also needs cache cleaning. And for this, you can follow these steps:

Step 1: First of all, go to the Windows search bar and err spdy protocol error.

Step 2: Then type down CMD and right click on it and select “Run as administrator.”

Step 3: Next, you will have to type down this following command and hit the enter button:


Once, done, you will find a confirmation message about the same.

Step 4: Next, you will have to type this below command:


Then try to access the website and see if everything is working fine or not with spdy protocol error f5.


So that was all for the what causes err_spdy_protocol_error? I hope after following all these errors, you have successfully fixed the issue. Also, if you have any more questions to ask about how to fix err_spdy_protocol_error? then do feel free to comment below and I will surely help you out or for more information visit here.

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