ERR_SPDY_PROTOCOL_ERROR is an error in the Google Chrome browser which can appear for some different reasons. A number of Google Chrome users are experiencing this error stating that This webpage is not available. It is a browser specific error as it only affects the Google Chrome users. So, Chrome users can’t access certain websites affected by this error.

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.


Fix Error Solution #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 Google Chrome and then visit this address:
  2. chrome://net-internals/#sockets
  3. Now click on Flush socket pools in order to flush SPDY sockets.
  4. Restart your Browser and check if the issue is resolved or not.

Fix Error Solution #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. On Windows Start menu find and right-click on “Command Prompt“. (Run as administrator)
  2. Inside the command prompt, type the following lines of code and hit Enter key after typing each line.
  3. ipconfig /release
    ipconfig /flushdns
    ipconfig /renew
  4. Again open Admin Command Prompt and type the following and hit Enter key after each one:
  5. ipconfig /flushdns
    nbtstat –r
    netsh int ip reset
    netsh winsock reset
  6. Reboot to apply changes. Flushing DNS seems to Fix Chrome err_spdy_protocol_error.

Fix Error Solution #3: General Troubleshooting

  • OPTION 1
  • Make sure your Chrome browser is up to date: In order to update Google Chrome, click Three dots on the upper right-hand corner in Chrome then select “help” and then click on “About Google Chrome”. Make sure Google Chrome is updated if not then you will see an Update button, click on it.
  • OPTION 2
  • Clear Google Chrome Cache and History: Open Google Chrome and press Ctrl + H to open history. Next, click Clear browsing data from the left panel. Make sure the “beginning of time” is selected under Obliterate the following items from and click on “Clear browsing data” and wait to be cleared. Then only close Google Chrome and restart your PC.
  • OPTION 3
  • Run Chrome Cleanup Tool: This official application will scan and remove software that may cause problems with Chrome, such as crashes, unusual startup pages or toolbars, unexpected ads you can’t get rid of, or otherwise changing your browsing experience.

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