Fix: “Err_Quic_Protocol_Error” in Google Chrome

Patrick Zuva avatar. By: Patrick Zuva
2 minute read

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Google Chrome is the search engine of choice for millions of people across the world. Sadly, even with all its great features, and because the developers at Google are always experimenting ways to improve your search experience, the search engine isn’t immune to occasional bugs. One Google Chrome error that’s been popping up more often of late is this:

 ‘Err_quic_protocol_error’.

Oftentimes, as internet users, we lack the technical expertise to debug issues like this one. This causes considerable frustration, stops us from working, and puts us in conflict with the same machines that are supposed to make our lives easier.

READ ALSOFix: Chrome doesn’t sync on Windows 10

Oddly enough the QUIC protocol was designed by Google as a way to speed up your browsing experience. But as with most experimental software, the bedding in period is often marked by glitches. This piece of software has sadly caused connection problems for some Chrome users.

A quick fix for the “Err QUIC Protocol” error

And unless you are a software engineer, the sight of the QUIC Protocol error message across your screen will likely cause a fright. Fortunately, there is a quick fix for this Chrome browser error.

  1. Open a new tab in your Chrome browser
  2. In the search bar, type this string – chrome://flags/. You should get this screen:


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  3. Click “Repair All” to fix all issues with Patented Technologies (requires upgrade).

  1. Don’t get alarmed by the ‘Careful, these experiments may bite’ message. Just scroll down and locate ‘Experimental QUIC protocol‘.
  2. Click the drop-down menu and select the disable function.
  3. Go and restart your Chrome browser.

This should fix the ‘err_quic_protocol_error’ error.

The internet is a beautiful place. You literally have the world at your fingertips. Sadly, for various reasons, we can’t always access the web sites we would like to. The reasons for this are varied, including network problems, blocked paths, interfering web extensions, and different other software bugs. The good thing is, as we have seen, the fixes for most of these errors are usually quite simple.

As a best practice, you should also want to keep your machine scanned for viruses, malware, and other bugs that slow your computer and disturb your browsing experience. Some system errors can easily be addressed by using any of the several optimization tools widely available on the web.

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For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patented Technologies (requires upgrade).

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