ERR_QUIC_PROTOCOL_ERROR in Chrome

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How to Fix ERR_QUIC_PROTOCOL_ERROR in Chrome

Google chromes has so many errors like ERR_QUIC_PROTOCOL_ERROR but it stands as the world’s best browser for several years due to the efforts and hard work from its release. They have made it one of the most secured browsers. It is also world’s fastest and most used browser. It always keeps working in making their service better and keeps trying latest innovations to improve user experience and internet connectivity.

How to Fix ERR_QUIC_PROTOCOL_ERROR in Chrome

But sometimes in making the web faster, their own services receive a setback. Many users have faced these errors while going through the websites on chrome. One of the errors is ERR_QUIC_PROTOCOL_ERROR. One of their latest works is QUIC protocol. Almost every Google website offers a connection through QUIC protocol.

What is QUIC Protocol?

QUIC is an experimental transport layer network protocol that is present in Google Chrome to make a connection between two endpoints over UDP. It was designed to speed up secure internet browsing and to improve online game graphics.

Key features of QUIC are reduced connection establishment time, improved congestion control, forward error connection and connection migration.

What is the Reason Behind ERR_QUIC_PROTOCOL_ERROR?

When there is a problem on the development side, then there is chance of facing this error message while opening any website on Google Chrome. As mentioned above, QUIC is an experimental protocol which means this feature is still being tested and might be unstable. So it is normal if it was not able to load the site or some error message appears on the screen.

The error causes a statement to show stating that this webpage is not available or that a site is temporarily down or has been permanently moved to new address. This issue occurs for more commonly used websites such as Facebook, YouTube and Gmail. It can also be caused due to third party extensions. This error message also appears when the URL is down.

6 Best Ways to fix ERR_QUIC_PROTOCOL_ERROR in Chrome

If you are not able to open any website and receive ERR_QUIC_PROTOCOL_ERROR error message. You can use following ways mentioned below to solve this issue.

Solution 1 ⇒ Disabe Browser Extensions

As we have mentioned above, this error can also be caused due to third party extensions and this problem can be resolved by disabling them.

Step 1 ⇒ Firstly, open the chrome and go for a new tab.

Step 2 ⇒ Then enter the command “chrome: //extensions” in the Address bar and Click Enter.

Step 3 ⇒ Then, go through the Extensions and disable the one which is not required.

Step 4 ⇒ Restart the chrome and check if the error still exists.

If the issue is not resolved even after disabling the extensions also then go for the deletion of third party extensions completely.

Solution 2 ⇒ Using the Chrome://flags Command

Step 1 ⇒ Firstly, open the chrome and go for a new tab.

Step 2 ⇒ Then type the command “chrome: //flags” in the address bar. A settings menu will get opened.

Step 3 ⇒ Notifications will popup stating “Careful; these experiments may bite”. This will issue a warning message about employing such “experimental features”. This procedure is safe and this message can be ignored.

Step 4 ⇒ Now, find experimental QUIC protocol by scrolling up or down or by pressing the CTRL+F Keys. A box will appear named Find Box appear.

Step 5 ⇒ Enter Experimental QUIC protocol in this box.

Step 6 ⇒ Once you find this, select Disabled from the drop down menu. Then restart the chrome.

Step 7 ⇒ Now check if ERR_QUIC_PROTOCOL_ERROR error still prevails.

Solution 3 ⇒ Resetting the Browser

Step 1 ⇒ Firstly, open the chrome and go on the three vertical dots in the top right hand corner to obtain the ‘settings’ menu.

Step 2 ⇒ Then scroll down and go for the advanced option.

Step 3 ⇒ Select ‘Reset’ option and restart the chrome.

Before going for this Solution, save all the links and tabs. Because after using the Reset option your data will be deleted permanently.

Solution 4 ⇒ Check the Proxy or Firewall settings

There are some ISP’s which use a particular Solution to differentiate user accounts. For security purpose, they include a login prompt before the user can actually use the internet. A simple workaround would be to disable your VPN or Proxy while logging in. Go to internet properties section by clicking on Windows key and typing the command “inetcpl.cpl.”

Step 1 ⇒ Then click on the Connection option and select LAN settings. Also ensure that there should be no issue with firewall or proxy browser.

Step 2 ⇒ If errors are present, fix them first.

Step 3 ⇒ Deselect the option ‘Use a proxy server for your LAN’ and check the ‘automatically detect settings’ option.

Step 4 ⇒ Then click on OK and apply and then restart the computer.

Solution 5 ⇒ Temporarily Disabling the Firewall

Step 1 ⇒ Firstly, search for an anti-virus programme that may be present in the system tray. Right click on it and disable.

Step 2 ⇒ Choose a short period for the disabling of anti-virus program.

Step 3 ⇒ Open the browser to check if ERR_QUIC_PROTOCOL_ERROR error has resolved.

Step 4 ⇒ If still exists, go to the System and Security settings by pressing Windows Key +I to open the control panel and select it.

Step 5 ⇒ Choose windows firewall option and select the ‘turn windows ON or OFF’ option from the panel.

Step 6 ⇒ Turn off the firewall and restart the computer.

Step 7 ⇒ After this always remember to turn on the firewall back whether the error has fixed or not.

Final Words

There is no exact reason or cause for ERR_QUIC_PROTOCOL_ERROR error. This error does not appear in Incognito Tab. No need to worry about this error. Everything has a solution. In the same way there are solutions and ways to fix ERR_QUIC_PROTOCOL_ERROR error. The Solutions which are mentioned above can be used to solve this problem.

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