This error can be caused due to a protocol that Chrome uses. So, fixing the
SPDY sockets can help to resolve this issue. This error can also be related to network and it is most likely to be associated with Google Chrome's
data server.
Solutions to Fix the Error "ERR_SPDY_PROTOCOL_ERROR":
The solutions to fix this problem are in abundance but I will mention only those that work. So, follow the below methods to get this issue resolved.
Method # 1: Flushing SPDY Sockets
This is one of the most working methods of all. In this method, the SPDY sockets are flushed to get the Chrome back to work. Follow the steps below.
1. Open the Google Chrome browser and paste the following URL inside the address bar followed the
Enter
chrome://net-internals/#events&q=type:SPDY_SESSION%20is:active
2. Now, navigate to the
top right corner of the browser. You would see a tiny arrow facing down. Click on the arrow to open the drop-down and select
Flush sockets from the list. Now, check the browser to see if it is fixed or not.
Method # 2: Flushing DNS and Renewing IP Address
If the above method doesn't solve your issue, then you might be required to Flush the DNS and renew the IP address using a command prompt.
1. Open
Command Prompt (Admin) by right clicking on the Start menu icon and selecting it from the list.
2. Inside the command prompt, type the following lines of code and hit
Enter key after typing each line.
Note: Press
Enter key after typing each line of code.
Code:
ipconfig /flushdns
ipconfig /registerdns
ipconfig /release
ipconfig /renew
Method # 3: Clearing Chrome's Caches and Cookies
This error can also be resolved by clearing junk inside your Chrome.
Open your Chrome browser and press
Shift + Ctrl + Del keys on the keyboard and click over the
Clear browsing data button at the bottom of the menu appearing on top.
for more detail check this link
https://appuals.com/google-chrome-err_spdy_protocol_error/
