In this guide, learn how to fix ERR_SPDY_PROTOCOL_ERROR page in Google Chrome browser when you visit Google sites (YouTube, Gmail, etc…) or other sites like Wikipedia, Tumbler, and Reddit etc.
This tutorial is useful for you.
How To Fix Google Chrome’s ERR_SPDY_PROTOCOL_ERROR
Method 1. Flush Socket Cache
Step 1. Open your Chrome browser.
Step 2. In the browser address bar, type chrome://net-internals/#sockets and press Enter.
Step 3. Press Flush Socket Pools button, and check the website or webpage you’re getting the issue to see its loading properly.
Method 2. Flush DNS Cache
Step 1. Open command prompt as administrator.
Step 2. In Command Prompt window, run the below command:
Step 3. Wait until the process is completed then restart your computer.
Method 3. Disable Your Anti-virus
if you are using any other product of Avast possibility on your computer, attempt to disable your anti-virus.
Step 1. Open the Avast user interface, and go to Settings > Components.
Step 2. Select Customize next to WebShield.
Step 3. Uncheck the box next to Enable HTTPS scanning to turn the feature off.
Make sure you’ve restarted the browser and cleared the Chrome cache before trying above methods to fix ERR_SPDY_PROTOCOL_ERROR.
That’s about it.