How to fix ERR_QUIC_PROTOCOL_ERROR on Google Chrome?

by Olivia Morelli - -


Issue: How to fix ERR_QUIC_PROTOCOL_ERROR on Google Chrome?

Hello, I feel frustrated over here! I’ve started receiving an error when browsing with Google Chrome. The error says Error code: ERR_QUIC_PROTOCOL_ERROR. I can’t browse on any Google-connected pages. It’s interesting that when I browser using Incognito Mode, the error does not occur. Could you please help me fix this error?

Solved Answer

For the past several years, Google Chrome stands as one of the best web browsers. That’s because it exhibits plenty of useful features, supports thousands of extensions, features user-friendly interface, and works as fast as none of the other web browsers do.

However, just like any other apps, Google Chrome sometimes fails to work properly. Recently, several users asked us what it means an error ERR_QUIC_PROTOCOL_ERROR on Google Chrome. A full message looks like that:

This Webpage is Not Available
The webpage at “xxx” might be temporary down or it may have moved permanently to a new web address.

Unfortunately, but the actual cause of this error is unknown. It is assumed that it may be triggered by the misconfigured Google Chrome’s settings, some software conflict, connection problems, and similar issues. Luckily, it’s easier to fix ERR_QUIC_PROTOCOL_ERROR bug in a quite easy manner. For that, you have to perform the steps provided down below.

How to fix ERR_QUIC_PROTOCOL_ERROR on Google Chrome?

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Solution 1. Disable Experimental QUIC protocol

  • Open Google Chrome.
  • In the address bar of the new tab window, type chrome://flags/ and press Enter.
  • Don’t get dismayed at a warning message that says Careful, these experiment may bite. Once you see it, click Ctrl + F simultaneously to open search box.
  • Type Experimental QUIC protocol in it and select Disable from the drop down menu.
  • Finally, reopen Google Chrome.

Solution 2. Check Windows Firewall or Local Proxy Settings

  • Go to Start -> Control Panel -> Internet Options.
  • When a pop-up window shows up, click on the Connection and select LAN settings.
  • If the are some problems with the connection, you will have to fix them in order to remove ERR_QUIC_PROTOCOL_ERROR error.

Solution 3. Disable web browser extensions

  • Open Google Chrome and click on the Menu (three horizontal lines at the right top corner).
  • Select More Tools and click on the Extensions.
  • Here you have to remove the ticks that are shown aside the apps.
  • By removing the ticks, you will disable web browser’s extensions.
  • After that, click on Remove and Disable the link given under the plug-in.
  • Once you’re done, reopen Google Chrome.

Hopefully, these steps have helped you to get rid of ERR_QUIC_PROTOCOL_ERROR bug. Lastly, we would highly recommend you to install and run a full system scan with a professional optimization tool since that’s the only way to prevent system errors, slowdowns, malware infections, and similar issues. Our recommendation would be to use Reimage.

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About the author

Olivia Morelli
Olivia Morelli - PC & Mac repair expert

Olivia Morelli is a young, but a perspicacious IT expert who is currently just a year away from a Bachelor’s Degree in Software Systems. Her primary passion is cyber security, however, thanks to her detailed understanding of computer networks, operating systems and hardware, she can find a fix for any PC or Mac issue.

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