2 Option Fix: Google Chrome Error ‘Err_Quic_Protocol_Error’

2 Option Fix: Google Chrome Error ‘Err_Quic_Protocol_Error’

A number of Google Chrome users receive err_quic_protocol_error errors when trying to open websites integrated with Google. It also indicates that this web page does not exist. This error does not allow users to access some websites (but not all) over the Internet. Youtube, Gmail, and other Google-related things don’t seem to load properly. This is annoying for hard-core users of Google’s online services.

Google Chrome is, by far the most used browser among Internet users. All because of the ease of handling, fast web surfing and a whole heap of various functions. All is good, but sometimes you may encounter an error ERR_QUIC_PROTOCOL_ERROR.

Google is always busy trying the latest innovations to improve Internet connectivity and user experiences. QUIC (Fast UDP Internet Connections) is a protocol that Google uses to speed up the secure Internet by bypassing obstacles passing by. Therefore, a number of Google’s websites can connect through this protocol, causing some problems that result in this error message.



Causes of Error err_quic_protocol_error:

err_quic_protocol_error

As mentioned above, the main cause of this problem when opening Google’s websites in Google Chrome is a protocol called QUIC. This protocol is available in the latest versions of Chrome and causes this error in the majority of this error.

Third-party extensions installed on your Chrome may also be a problem for you. So, deleting these extensions can do some trick.

Even though the error page may indicate that the url of the page has moved or was closed – this is far from the truth. With a little advice in this article, you can easily get rid of this error.

Fix err_quic_protocol_error

Sometimes local caching can be a problem, but then the error will only appear on one site. If browser caching is disabled, you need to enable it. If enabled, clear the cache.

#Option 1: Disable QUIC protocol

Fix ERR_QUICK_PROTOCOL_ERROR

QUIC  is an experimental network transport protocol that is present in Google Chrome and the Yandex browser to establish a connection between two endpoints via UDP.

If there is a problem on the side, then the probability of receiving this error message when opening any website in the browser is chrome and Yandex. Therefore, you can disable this experimental protocol in your browser and check if the problem is resolved.

  • Open your browser and enter Chrome chrome: // flags / for the browser Yandex browser: // flags in the address bar for the browser.
  • Then write in the Experimental QUIC protocol search and on the right side of this column, you will see the value Default, which means default. You need to disable it by selecting disable.
  • Restart the browser and see if the problem is resolved.

# Option2: Disable VPN/Proxy when connecting to your ISP

err_quic_protocol_error

There are some Internet service providers that use a special method to distinguish between user accounts. For security reasons, they include a login prompt before the user can actually use the Internet. In this case, you need to enter a username and password to log into your account provided by your ISP. If you have this way, then you must first log in.

A simple workaround would be to disable your VPN or proxy by logging into your user account. If you are using an Internet provider for the first time and you do not have a username or password, you can ask your ISP if it has such a protocol or not.



If it doesn’t work for you, you may need to search for and delete any third-party extensions installed in your Chrome Browser. For this purpose, open the Chrome Extensions by typing this URL in the browser.

chrome: // extensions /

Search for any third-party extension that is causing the problem and deletes it by clicking the delete mark on the right.

PRO TIP: If the problem is with your computer or laptop/notebook, you should try using Reimage Plus Software, which can scan repositories and replace corrupted and missing files. This works in most cases where the problem is caused by system corruption.

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