How to Fix ERR_SPDY_PROTOCOL in Chrome?

It might be aggravating to be unable to access a website. Especially if you are presented with an error message you don’t understand.
The ‘ERR SPDY PROTOCOL ERROR,’ for example, is a common problem you could run into while surfing the web.

While this message may appear to be intimidatingly sophisticated and complicated at first glance, it is actually quite straightforward. It’s a lot easier to fix a problem if you know what it signifies. There are a few fast tactics you may employ once you know what you’re working with.

We’ll go through what the SPDY protocol is in Google Chrome and what the ERR SPDY PROTOCOL ERROR implies in this post. Then we’ll look at five different ways to correct the problem.

Let’s get this party started!

An Introduction to SPDY in Google Chrome

Before we get into what the ERR SPDY PROTOCOL ERROR notice means and how to fix it, it’s important to first understand what SPDY is. SPDY is a Google Chrome networking technology in a nutshell.

SPDY was developed to aid in the security of HTTP-enabled web pages.
HTTP is a web protocol that allows browsers and servers to communicate and connect with one another.
The’s’ in SPDY stands for’speedy,’ and it refers to the protocol’s goal of improving web page loading times and lowering latency.

Some additional benefits of SPDY include:

Lower bandwidth usage
Improved performance
Better User Experience (UX)

SPDY alters web traffic and data after it leaves the server, hence reducing bandwidth use. As a result, consumers may have a speedier experience. It can also assist in the resolution of several common HTTP issues. HTTP, for example, can only retrieve one thing at a time, whereas SPDY can download numerous files at once.

Understanding the ERR_SPDY_PROTOCOL_ERROR in Chrome

Some of the error messages you get when surfing the web suggest that the site you’re attempting to reach has a problem. They can also indicate a problem with the operating system you’re using.

The good news is that this suggests the mistake was not caused by a problem with the website. It also helps you narrow down the source of the problem, getting you closer to a solution.

The bad news is that there is clearly an issue with the browser you’re using. This problem could affect not only the site you’re trying to use right now, but others in the future as well.

The SPDY protocol is built into Chrome, as we previously stated. As a result, the ERR SPDY PROTOCOL ERROR issue is unique to Chrome. Other browsers will not be affected (although most other browsers have their own version of this error message).

The SPDY protocol is no longer supported in the browser when the ERR SPDY PROTOCOL ERROR error displays, indicating that the web page you’re trying to view is unavailable.
This is most likely to happen when you try to access a Google-owned website, such as Gmail or YouTube.
It is also possible that it occurs on unrelated websites.

How to Fix the ERR_SPDY_PROTOCOL_ERROR in Chrome (5 Methods)

It’s time to learn how to fix the ERR SPDY PROTOCOL ERROR notice now that you know what it is.
Let’s look at five different approaches.

Update and Restart Your Browser
Use Google Chrome’s Incognito Mode
Clear Your Browsing Cache
Flush the SPDY Pockets
Clean the DNS and Renew the IP

Keep in mind that because this is a Chrome-specific problem, the only way to fix it is to use Chrome. Attempting to complete the instructions below in a different browser will be futile.

Method 1: Update and Restart Your Browser

The first step in resolving the ERR_SPDY_PROTOCOL_ERROR error is to update and restart your browser.
This may sound simple, but that’s sometimes all it takes to get rid of the annoying warning and gain access to the website you’re attempting to view.

Simply close your browser to accomplish this. After that, reopen it and try to reach the same website again.
Keep in mind that this is a temporary repair, and even if it addresses the problem, you should investigate the underlying problem using some of the methods listed below.

If the ERR SPDY PROTOCOL ERROR persists after restarting your browser, you might need to upgrade it.
Click on the three vertical dots in the upper right-hand corner of your Chrome browser to see if it’s up to date.
Then select Help > About Google Chrome from the drop-down menu.

This will take you to a page about the company. It’ll inform you the version of Chrome you’re using and, if necessary, start updating it:

Once the process is complete, click on the Relaunch button. Then, try visiting the website again to see if the issue is resolved. If not, you’ll want to proceed with the next method.

Method 2: Use Google Chrome’s Incognito Mode

Using your browser in ‘incognito’ mode is another easy but efficient method. To do so, go to the menu on your browser and select New incognito window:

You can also get here by using Ctrl+Shift+N on your keyboard. After you’ve engaged incognito mode, type the URL of the site you’re trying to access into the search bar. Continue to the next method if the problem persists.

On the other side, if it is fixed, you will be able to access the site. Keep in mind, though, that this is only a temporary fix, similar to restarting your browser. So keep reading for a few possible solutions to the error’s root cause.

Method 3: Clear Your Browsing Cache

If the web page is still unavailable after restarting your browser and utilizing incognito mode, you can try clearing your browser’s cache. To do so, open Chrome and go to Settings, then scroll down to the bottom of the page and choose the Advanced link.

This will bring up a drop-down menu with additional options.
Select Clear your browsing history:

Next, you’ll be taken to a new window with two tabs: Basic and Advanced:

It’s best to stay on the Basic tab. Your passwords, auto-fill data, and other information will be saved in this manner.
Simply select Clear data and wait a few moments for the browser to finish.

Restart your browser after the process is completed to see whether the error persists.

Method 4: Flush the SPDY Pockets

Another solution that can resolve the ERR_SPDY_PROTOCOL_ERROR is flushing the ‘SPDY pockets’. To do this, open up your Chrome browser and type or copy and paste the following into the URL bar

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

Next, hit the Enter key. That will bring you to a page that looks like this:

From there, click on Sockets in the left-hand navigation panel:

Click the Flush sockets pool button once you’ve arrived. Then try visiting the site that caused the error to check whether the issue has been repaired. If it doesn’t work, there’s another option.

Method 5: Clean the DNS and Renew the IP

If you’ve done all of the following and are still getting the ERR_SPDY_PROTOCOL_ERROR message, it’s possible that the problem is with your Domain Name System (DNS). You’ll need to open a command prompt to flush your DNS.

You may do this in Windows by pressing Win + R, then typing “cmd” in the window that displays and pressing Enter.
Open the Start menu and search for “Command Prompt” in the search field. After that, choose Run as administrator:

On a Mac, you can access the command prompt through Terminal. To do this, open Finder then click on Applications in the left panel:

Next, scroll down and click on the Utilities folder followed by Terminal:

Google Chrome is a very popular browser, with a staggering 73 percent market share, and it performs very well in most circumstances. However, you may occasionally see an ERR SPDY PROTOCOL ERROR warning that prevents you from accessing a specific website.

While inconvenient, this problem can be resolved without a lot of technical knowledge. To resolve the Chrome ERR SPDY PROTOCOL ERROR warning, you can use one of the following five methods:

Updating and restarting your Google Chrome browser.
Using Google Chrome’s incognito mode to access the site.
Clearing your browser’s cache.
Flushing the SPDY sockets of your Chrome browser.
Cleaning your DNS cache and renewing the IP.

Click here to read more useful and interesting articles.

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How to Fix ERR_SPDY_PROTOCOL in Chrome?

An Introduction to SPDY in Google Chrome

Understanding the ERR_SPDY_PROTOCOL_ERROR in Chrome

How to Fix the ERR_SPDY_PROTOCOL_ERROR in Chrome (5 Methods)

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