Help! I’m getting an “ERR_SPDY_PROTOCOL_ERROR” in WordPress

This signifies an error within your Chrome web browser.

If you try using a different web browser, that’s not Chrome (e.g. Microsoft Edge, Firefox, Safari), that will confirm your website is working and loading ok.

The issue isn’t very well understood, but it could be due to a faulty cache on your computer.

Here’s some things you can try:

  1. Make sure your Chrome web browser is up-to-date.  To check it is, go to the three dots at the top-right of your Chrome browser, then go to “Help” and “Update Google Chrome”.  A tool such as can also check if you’re using an up-to-date version.
  1. In your Chrome address bar, go to chrome://net-internals/#sockets (that’s without the normal “www.”) and a settings screen will appear.  Click on “Flush socket pools”.  Next, go to chrome://net-internals/#dns and click on “Click host cache”.
  1. Other factors that may cause this Chrome issue are VPN software, anti-virus software, or firewall / IT network systems.  If you’re on a corporate IT network, then these settings are most likely managed by your IT team, so you may need to seek their support.

If the issue persists, you may want to try reinstalling Chrome to see if that helps.

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