How to Resolve Chrome err_spdy_protocol_error

Running into errors is an inescapable hazard while surfing the internet and it happens to most users. They key is to quickly fix your PC and continue your work without those pesky error messages. Multiple potential causes exist. The errors can be caused by servers which are not properly configured, the browser itself or some changes to critical PC settings.  It is vital t properly identify why the error appears in first place in order to fix it.

Some users of the popular Google Chrome browser the ‘’this webpage is not available’’. The error is exclusive to Chrome and tends to appear more often if the PC is also running Windows 10.

What causes the “ERR_SPDY_PROTOCOL_ERROR”:

One reason may be tied due to a specific protocol used by Chrome and which can be easily solved. Other issues may be related to the network or even Chrome’s data server.

How to fix the error

While many pseudo-solutions are floating around the internet, this list will only feature those that have been proven to work by deploying internal tests and making sure that it is not a temporary fix.

Fix: Flush the SPDY sockets

In Google Chrome open a new tab and paste the following URL:

  • chrome://net-internals/#events&q=type:SPDY_SESSION%20is:active

Next, go to the upper right corner of the browser and left-click on the arrow facing down. A menu fill open and from the menu select the ‘’Flush sockets’’ option. Restart the browser and verify if any changes can be observed.

You can also go to: chrome://net-internals/#sockets and click directly on the Flush sockets button

Alternative fix: Refresh IP and DNS

In order to use this fix you will need to open Command Prompt with administrator rights Go to Start/All Programs/Accessories, right click on Command Prompt and run with admin rights

In Command Prompt enter each line and press enter after each of them:

  • ipconfig /flushdns
  • ipconfig /registerdns
  • ipconfig /release
  • ipconfig /renew

Additional fix: Clean cache data

Open Chrome and press simultaneously on Shift-Control-Delete. A menu should appear. Click on the ‘’Clear browsing data’’ button and you are good to go.

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