Solve Error

How to Fix err_spdy_protocol_Error?

Solving the Mystery of ERR_SPDY_PROTOCOL_ERROR

Browsing the web should be a seamless and efficient experience, but sometimes, you may encounter errors that disrupt your online activities. One such error is ERR_SPDY_PROTOCOL_ERROR. This error message can appear in your web browser and prevent you from accessing certain websites or web pages. However, fear not! In this comprehensive guide, we’ll explore what ERR_SPDY_PROTOCOL_ERROR is, why it occurs, and, most importantly, how to fix it and get back to smooth web surfing.

Part 1: Understanding ERR_SPDY_PROTOCOL_ERROR


ERR_SPDY_PROTOCOL_ERROR is a common error message that you might encounter while using Google Chrome. It occurs when there’s an issue with the SPDY (pronounced “speedy”) protocol, which was designed by Google to improve web page loading times and security.


Several factors can trigger this error:

  1. Network Issues: Slow or unstable internet connections can disrupt the SPDY protocol, leading to the error.
  2. Browser Cache and Cookies: Corrupted or outdated cache and cookies can interfere with the proper functioning of SPDY.
  3. Browser Extensions: Certain browser extensions or add-ons can conflict with SPDY, causing the error.
  4. Website Configuration: In some cases, the issue might be on the website’s end, with a misconfigured server or outdated SPDY protocol.

Part 2: Troubleshooting and Fixing ERR_SPDY_PROTOCOL_ERROR

Now, let’s delve into the solutions to resolve ERR_SPDY_PROTOCOL_ERROR and get your web browsing back on track.

Solution 1: Refresh the Page

Sometimes, the error may be temporary. Try refreshing the webpage by pressing the F5 key or clicking the refresh button in your browser. If it’s a momentary glitch, this simple step might solve the issue.

Solution 2: Check Your Internet Connection

A weak or unstable internet connection can cause ERR_SPDY_PROTOCOL_ERROR. Ensure you have a stable and high-speed internet connection. If you’re on a Wi-Fi network, consider resetting your router or modem.

Solution 3: Clear Browser Cache and Cookies

Corrupted cache and cookies can interfere with the SPDY protocol. Here’s how to clear them in Google Chrome:

  1. Open Chrome and click on the three-dot menu icon in the top-right corner.
  2. Go to “More tools” and select “Clear browsing data.”
  3. Choose the “Basic” tab, select “Cookies and other site data” and “Cached images and files.”
  4. Click “Clear data.”

After clearing the cache and cookies, restart Chrome and see if the error is resolved.

Solution 4: Disable Browser Extensions

Browser extensions or add-ons can sometimes conflict with SPDY. To identify if this is the issue, follow these steps:

  1. Open Chrome and click on the three-dot menu icon.
  2. Go to “More tools” and select “Extensions.”
  3. Disable all extensions by toggling the switch off.
  4. Restart Chrome and check if the error persists.

If the error disappears after disabling extensions, re-enable them one by one to identify the problematic extension.

Solution 5: Update Google Chrome

Outdated browser versions may have compatibility issues. Ensure you’re using the latest version of Google Chrome:

  1. Click on the three-dot menu icon.
  2. Go to “Help” and select “About Google Chrome.”
  3. Chrome will automatically check for updates and install them if available.

After updating, relaunch Chrome and test if the error still occurs.

Solution 6: Disable SPDY/3

Disabling SPDY may resolve the issue, although it’s not recommended for long-term use as it can affect your browsing experience. Here’s how to do it:

  1. In the Chrome address bar, type chrome://flags and press Enter.
  2. Search for “Enable SPDY/3” or “Experimental SPDY/3.1” and disable it.
  3. Restart Chrome.

Test if the error is resolved, and if so, consider re-enabling SPDY after some time to check if the issue persists.

Solution 7: Use Incognito Mode

Opening the webpage in Incognito mode can help determine if the issue is related to browser extensions or cache. To do this:

  1. Click on the three-dot menu icon.
  2. Select “New incognito window.”
  3. Open the problematic website in the incognito window.

If the webpage loads correctly in incognito mode, it’s likely that an extension or cached data is causing the error.

Solution 8: Try Another Browser

If all else fails, try accessing the website using a different browser. This can help determine if the issue is specific to Chrome or affects multiple browsers. Firefox, Microsoft Edge, or Safari are some alternatives you can consider.

Solve Error

Part 3: Advanced Fixes

If you’ve exhausted the basic troubleshooting steps and the error still persists, you may need to explore more advanced solutions.

Solution 9: Flush DNS Cache

Flushing the DNS cache can resolve network-related issues:

  1. Press the Windows key + X and select “Windows Terminal” or “Command Prompt.”
  2. Type ipconfig /flushdns and press Enter.
Solution 10: Reset Chrome Settings

Resetting Chrome settings can restore the browser to its default state, potentially resolving the error:

  1. Click on the three-dot menu icon.
  2. Go to “Settings.”
  3. Scroll down and click on “Advanced.”
  4. Under “Reset and clean up,” select “Restore settings to their original defaults” and follow the prompts.
Solution 11: Contact Your Internet Service Provider (ISP)

If the error is persistent and seems to be related to your network, reach out to your ISP for assistance. They can help diagnose and resolve any network-related issues.

Solution 12: Check the Website

If the error occurs on a specific website, it’s possible that the issue is on the website’s end. Contact the website administrator or support to report the problem.

Solution 13: Update Operating System

Ensure your operating system is up to date with the latest updates and patches. Outdated system software can sometimes lead to compatibility issues.


The ERR_SPDY_PROTOCOL_ERROR may seem daunting, but with the right troubleshooting steps, you can resolve it and enjoy uninterrupted web browsing. Start with the basic solutions, such as clearing cache and cookies or disabling extensions, and gradually move on to more advanced fixes if needed.

Remember that keeping your browser and operating system updated is crucial for a smooth browsing experience. If you’ve tried all the solutions and the error persists, consider reaching out to a tech-savvy friend or a professional for assistance.

Similar Posts