If you regularly work on Google Chrome, then you must have face different errors including ERR_SPDY_PROTOCOL_ERROR. This error occurs when you are trying open any site or refreshing it. Reading this article will help you to remove this error permanently from your browser. Before, we look for the possible solutions of this error, we should know about the reasons that cause it. It can be due:

  • Any antivirus or Firewall
  • Outdated version of Google Chrome
  • Any problem in Google Chrome data server


If you use Google Chrome as default browser and frequently facing ERR_SPDY_PROTOCOL_ERROR, then you should follow the given below methods to fix this error permanently. These ways will surely help you to get rid of this error.

Update Google Chrome

As outdated version of Google Chrome can cause this error, so updating Google Chrome to its latest version can give you the solution of this. For this, you simply have to follow given below steps:

  1. Turn on your PC and open Google Chrome.
  2. Click on more (three dots) at right upper corner.
  3. Then click on Update Google Chrome.
  4. Then, go to Relaunch.

That’s it.

 Try Chrome Clean up Tool

If you are still having the problem, then you should think about downloading Google Chrome Clean up Tool from internet. This tool will help you to cleanup chrome and remove that error.

 Clear Google Chrome`s Cookies

Other method to fix this error permanently is to clear Google Chrome`s cookies. In order to clear Google Chrome cookies, follow the given below steps:

  1. Open Google Chrome and search for “chrome://settings” in search bar.
  2. Then, click on Show Advanced Settings.
  3. Then, go to Clear Browsing Data.
  4. Check Cookies & other site and plugins data” and Cached images and files options and untick all other.
  5. Also, make sure that duration is set to “the beginning of time“.
  6. Click on option “Clear Browsing Data“.

Check Firewall Settings

If methods above described don’t help you to fix this error, then try this one. There is possibility that this error can be due to settings to Firewall or any other antivirus.

  1. Open Avast Antivirus and go to settings.
  2. Then, disable or untick Enable HTTPS scanning.
  3. Go to Exclusions and add blocking website to exclusion list.

Now, open Google Chrome and try to open that website again without any error.

Flush Sockets

Last method to fix this error permanently from Google Chrome is through Flush Sockets. Just follow given below steps:

  1. Turn on your PC and open Google Chrome.
  2. Copy the URL given below “chrome://net-internals/#sockets”.
  3. Paste it in the search bar and press Enter.
  4. Then, click on Flush Sockets Pool button.

If you are having any issue while opening any website on Google Chrome and it shows ERR_SPDY_PROTOCOL_ERROR, then follow the above methods to fix this error permanently. If this error still appears after trying above ways, then contact any expert for it or re-install Google Chrome.