How to Fix err_spdy_protocol_error – Works 100%

You might see err_spdy_protocol_error in your Chrome at some point. This is a networking error and we can help you to fix this easily. Just check this post.

SPDY, developed by Google, is a networking protocol. It ensures fast web page download. As a result, you experience blazing fast speed when surfing the web.

 err_spdy_protocol_error

When Could You Encounter the SPDY Error?

SPDY needs SSL/TLS (Transport Layer Security)/(Secure Sockets Layer) communication security to work. That’s the reason a lot of users encounter this error when visiting secure websites.

Some common examples of secure websites with HTTPS pages are YouTube, Google, Gmail etc.

But you can also encounter SPDY error when visiting non-HTTPs websites. These websites use TCP (Transmission Control Protocol). SPDY also supports this protocol and throws the error when a user visits these websites.

Although common in Google Chrome, you may also face this glitch in Mozilla Firefox and Internet Explorer.

 

SPDY Reddit and Wikipedia – Commonly reported problem

SPDY error is related to SSL/TLS so you can expect to see this error when visiting a secure and non-secure websites if your browser is outdated.

For some reason, users often see this error when visiting Reddit and Wikipedia. That’s the reason its often nicknamed SPDY Reddit.

If you are seeing this error only when visiting Reddit or Wikipedia, you can easily solve it by simply flushing the sockets (method explained below).

 

What Causes ERR_SPDY_PROTOCOL_ERROR

The culprit is often an outdated browser.

When you visit a webpage, your browser sends a request using SPDY protocol. An outdated browser will trigger an old version of SPDY. Since Google only supports the latest version, your request will result in an error.

Your browser will report an ERR_SPDY_PROTOCOL_ERROR.

When you see err_spdy_protocol_error, you might encounter these additional errors. Once you have resolved the SPDY error, you won’t see any of these errors either.

1. err_spdy_protocol_error nginx
2. net::err_spdy_protocol_error
3. failed to load resource: net::err_spdy_protocol_error
4. err_spdy_protocol_error cloudflare
5. net::err_spdy_protocol_error nginx

So when you encounter the SPDY error or any of its variants, it’s time to fix SPDY Protocol Error using the simple steps below.

 

HOW TO FIX SPDY PROTOCOL ERROR

These are some easy and quick methods to fix this problem.

 

1. UPDATE YOUR BROWSER

In 70% cases, updating your browser would fix this problem.

How to update Google Chrome

Step 1

Move your pointer to top right corner. Click on three dots. Now select settings.

Step 2

In left side bar click on about. A new window will appear. Here you can see if your browser up to date or not.

 Fix err_spdy_protocol_error

 

2. FLUSH SPDY SOCKETS IN GOOGLE CHROME

Sometimes flushing SPDY sockets can solve this problem quickly. Check steps below to flush sockets.

Step 1

Copy the URL below.

‘chrome://net-internals/#events&q=type:SPDY_SESSION%20is:active’

Step 2

Paste it in your Chrome address bar. Remove the quotes and hit ENTER.

Step 3

Click on the small drop down arrow in top right corner on the RED strip that you see in your browser window.

Click on “Flush Sockets“

Step 4

Now close your browser. Wait a few seconds and open it again.

Congratulations, now you’ve flushed SPDY sockets in your browser successfully.

 

3. CLEAR TEMPORARY FILES, COOKIES, AND CACHES

Step 1

Press Window+R. Type %temp%. Hit enter.

Step 2

A window will open with lots of small files and folders. Select all and press Shift+Delete.

Step 3

Now for clearing cookies and caches, open Google Chrome. Go to History from menu in top right corner.

Go to Clear Browsing Data. Select Options as shown in the pictures below. Finally, click on Clear Browsing Data button.

 

4. BY CHROME CLEANUP TOOL

Chrome Cleanup Tool is the best option for dealing with such browser issues.

Download Google Chrome Cleanup from here.

After installing the tool, run a browser scan. In few minutes it will fix all error and network problem itself.

The tool is officially developed by Google for providing better browsing experience.

This tool also very handy to remove unwanted third party home page toolbars and unexpected browser crashes.

chrome cleanup tool

 

5. CHECK YOUR AVAST ANTIVIRUS SETTING

If you are using Avast security antivirus program then you can encounter SPDY error.

To fix this error, open Avast antivirus application. Go to setting and click on Web Shield Protection.
Now add all URLs which are giving err_spdy_protocol_error.

NOTE: You can also check how to fix DNS_PROBE_FINISHED_BAD_CONFIG error here!

 

You’ve done it!

That’s it for SPDY error for now.

You learned some easy solutions to fix this networking glitch. Don’t forget to restart your browser after reading this as the first step to fix the problem. Restarting your PC may seem hectic but it will solve your problem.

Are you still facing any Google Chrome errors? We are here to resolve them for you. Let us know in the comments. We’d love to make your life easier!

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