Ошибка err quic protocol error

The ERR_QUIC_PROTOCOL_ERROR message is an error that shows up in the Google Chrome browser when you try to visit a site.

Typically, the full error reads something like:

This site can’t be reached, The webpage at https://examplesite.com/ might be temporarily down or it may have moved permanently to a new web address,

ERR_QUIC_PROTOCOL_ERROR

In this article, we’ll cover two things to help get your browser working again:

• What is the ERR_QUIC_PROTOCOL_ERROR in Chrome?
• How to Fix the ERR_QUIC_PROTOCOL_ERROR in Chrome

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What is the ERR_QUIC_PROTOCOL_ERROR?

As the name suggests, this error indicates some problem with Chrome’s use of its Quick UDP Internet Connections (QUIC protocol) feature.

The QUIC protocol was developed by Google and helps improve the performance of connection-oriented web applications.

According to W3Techs, only about 3.2% of websites on the Internet are using the QUIC protocol, which means most of the websites you use will not use this protocol.

However, because Google developed the protocol for its own products, most of Google’s sites do use QUIC (including YouTube). So while the protocol’s overall usage rate is not high, the fact that Google uses QUIC means you’ll interact with sites using QUIC pretty much every day.

Sometimes, the ERR_QUIC_PROTOCOL_ERROR message could be directly caused by the protocol, but it can also be caused by a problem with your Internet connection (or VPN/proxy) or an issue with a browser extension.

Additionally, this error has nothing to do with your WordPress site. However, it can prevent you from accessing your WordPress site sometimes, which is why we’re helping you fix the issue.

How to Fix the ERR_QUIC_PROTOCOL_ERROR in Chrome

There are a few different methods to fix the ERR_QUIC_PROTOCOL_ERROR, which we’ll demonstrate below:

• Disable the QUIC Protocol in Chrome
• Disable Chrome browser extensions
• Check proxy settings in Windows

Solution 1: Disable the QUIC Protocol in Chrome

Because the error indicates a problem with the QUIC protocol, one solution is to simply disable the QUIC protocol in Chrome.

To do so, type chrome://flags/ into your Chrome browser address bar. Then, use the search box to search for “quic” to locate the protocol.

From there, use the drop-down to change from Default to Disabled:

Once you’ve disabled the Experimental QUIC protocol, restart the Chrome browser to make the changes take effect.

Solution 2: Disable Chrome Extensions

Sometimes, it could be an issue with one of your Chrome extensions that’s causing the error.

Unfortunately, there’s no way to diagnose the exact extension so the best approach is to disable all of your extensions and then re-enable them one-by-one to find the culprit.

If you only started seeing the ERR_QUIC_PROTOCOL_ERROR message after installing a new extension, you can try disabling that extension first.

To disable your Chrome extensions, you can enter chrome://extensions/ in your browser address bar:

Then, use the toggle to enable and disable extensions as needed.

Solution 3: Check Proxy Settings (Windows)

If you’re using Windows, you might have an issue with your proxy settings that’s causing the ERR_QUIC_PROTOCOL_ERROR message.

To get started, open your Settings area in Windows (hit the Windows key and then select the Settings gear).

Then, search for Internet Options and select the result:

In the Internet Properties popup, go to the Connections tab. Then, select LAN settings:

Make sure that the Use a proxy server for your LAN… setting is unchecked. Then, click OK and then Apply. You might also need to restart your computer:

Summary

The ERR_QUIC_PROTOCOL_ERROR message is an error that’s specific to the Chrome Browser and its use of the Quick UDP Internet Connections (QUIC protocol).

It has nothing to do with your WordPress site itself, but it might prevent you from accessing your WordPress site.

To fix the issue, you can try:

• Disabling the Experimental QUIC protocol in Chrome’s settings
• Disabling your Chrome browser extensions
• Changing your Windows proxy settings

Ошибка ERR QUIC PROTOCOL ERROR — частый гость Google Chrome и других браузеров на базе проекта Chromium, например, Microsoft Edge и Яндекс.Браузер. Причина — проблемы при установке подключения с веб-ресурсом через протокол QUIC. Хорошая новость: проблема несерьезная — для нее доступно одно основное решение и несколько дополнительных.

Решение ERR QUIC PROTOCOL ERROR

Если с протоколом QUIC наблюдаются какие-то проблемы, то пользователь всегда может деактивировать его использование в своем обозревателе. Сделать этого в обычных настройках не получится, а все потому, что функция экспериментальная.

• Запустите браузер Google Chrome;
• введите в адресную строку chrome://flags и нажмите ENTER;
• в пустой поисковой строчке просто напишите QUIC и найдите опцию «Experimental QUIC protocol»;
• в ниспадающем меню рядом с опцией выберите «Disable»;
• для внесения изменений кликните на кнопку «Перезапустить».

На других браузерах протокол QUIC отключается аналогичным образом. Единственное отличие — что вводить в адресную строку. Вот вам несколько полезных примеров:

• Opera→opera://flags
• Edge→edge:://flags
• Яндекс.Браузер→browser://flags

Деактивация QUIC-протокола действительно устраняет ERR QUIC PROTOCOL ERROR, однако место последней всегда может занять какая-то другая ошибка. А если это произошло, то, возможно, проблема была вовсе и не в протоколе QUIC, а в чем-то ином. Что делать дальше — нужно разбираться уже самостоятельно по ходу дела.

QUIC отключен, но ошибки все равно появляется — что делать?

Некоторые пользователи в сети отмечают, что у них ERR QUIC PROTOCOL ERROR появляется даже после деактивации протокола QUIC. В таком случае можно воспользоваться рядом дополнительных решений. За их эффективность мы поручиться не сможет, но опробовать их стоит, особенно если вы не хотите отключать QUIC или зашли в буквальный тупик.

• VPN — чрезвычайно полезная вещь, если вам хочется получить доступ к заблокированным или недоступным для вашей страны веб-ресурсам. К сожалению, порой VPN делает обратное, блокируя доступ ко всем либо каким-то определенным сайтам. Отключите VPN и протестируйте браузер. Если вы не используете VPN, наоборот, попробуйте задействовать его для перехода на нужный сайт.
• Расширения для того и существуют, чтобы «расширять» уже существующий функционал браузера. Тем не менее расширения могут ограничить доступ к ряду веб-ресурсов. Отключите все (!) расширения, перезапустите браузер и проверьте наличие ERR QUIC PROTOCOL ERROR. Если ошибка исчезла, начните по очереди включать расширения обратно, чтобы методом исключения определить виновника проблемы.
• Сторонний брандмауэр может блокировать подключения к некоторым веб-сайтам. Тоже самое касается антивирусов, которые имеют встроенные функции сетевого экрана. Отключите на своем ПК стороннее защитное ПО и проверьте браузер. Можно пойти еще дальше и отключить системный (!) брандмауэр Windows, т.к. он также иногда может блокировать кое-какие сетевые подключения по ошибке.
• Ошибка протокола QUIC могла появиться в результате неполадок, возникших на стороне самого веб-сайта. В таком случае не остается ничего другого, кроме как ждать решения проблемы силами владельцами этого самого сайта.
• Вспомните, не устанавливали ли в последнее время каких-то новых приложений или драйверов? Воспользуйтесь точкой восстановления, чтобы вернуть свою систему в ранее, более стабильное состояние. Достаточно выполнить WIN+R→rstrui.exe, выбрать подходящую точку восстановления и нажать «Готово».

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Как видите, избавиться от ERR QUIC PROTOCOL ERROR, как правило, довольно просто. Если у вас остались дополнительные вопросы, пожалуйста, делитесь ими в комментариях.

The ERR_QUIC_PROTOCOL_ERROR is an error that shows up on Google Chrome and prevents users from efficiently using the page. The error causes a statement stating ‘This webpage is not available’ or that a site is “temporarily down” or has been “permanently moved to a new web address.”

To fix this error, disable the QUIC protocol in Chrome by changing the Experimental QUIC Protocol setting from Default to Disabled. This error is specific to the Chrome browser and its use of the QUIC protocol.

It indicates that the error is related to the ‘Quick UDP Internet Connections (QUIC protocol)’ feature employed by Chrome which accelerates the process of browsing as well as improves the graphics of games available online.

Furthermore, this issue does not appear to occur for all websites but does occur for more commonly used ones such as Facebook, YouTube, and Gmail. The use of other third-party extensions may also be a cause of the ERR_QUIC_PROTOCOL_ERROR. Disabling such extensions is one of how this error can be tackled, and the processes involved are highlighted further below.

Google is undoubtedly one of the most trusted and extensively used websites. It is primarily due to its numerous features, user-friendly nature, and high-performance value. It is a platform that most users frequently interact with and rely on to provide information they may require. However, even the best websites experience issues, especially when implementing new features and applications to enhance the user’s experience.

Bugs, issues with coding, network problems, etc., are common issues in this regard and can prevent users from transitioning smoothly from one version to the next. In this context, encountering an error such as the ERR_QUIC_PROTOCOL_ERROR is frustrating as it hampers productivity and what has become a daily activity in most people’s lives.

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How to Fix ERR_QUIC_PROTOCOL_ERROR in Chrome

Some of the primary ways to fix the ERR_QUIC_PROTOCOL_ERROR are explored below.

Method 1: Using the chrome://flags Command

1. At First, go to the Chrome browser and go to a new tab.

2. Then enter the command “chrome://flags” in the Address bar. It will take you to a settings menu.

3. A message/notification stating, “Careful; these experiments may bite,” will issue a Warning message about employing such “experimental features.” However, the procedure is safe, so this message can be ignored.

4. Afterward, locate the Experimental QUIC protocol feature by scrolling down or pressing the CTRL+F keys. It will make a box called the Find Box appear.

5. Type enter “Experimental QUIC protocol” in this box.

6. Once located, select Disabled from the drop-down menu and relaunch the Chrome Browser. It should cause the error to disappear.

Method 2: Disabling Browser Extensions

As stated earlier, numerous third-party extensions may cause this issue of ERR_QUIC_PROTOCOL_ERROR to arise, and hence disabling them may resolve the issue.

1. At First, go to the Chrome browser and go to a new tab.

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

3. Afterward, go through the Extensions and disable the ones we do not require.

4. Finally, “Restart” the computer and see if the error persists.

Note: If simply disabling the extensions causes no change, it is advisable to delete the third-party extensions.

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Method 3: Resetting the browser

1. At First, go to the Chrome browser and click on the three vertical dots in the top right-hand corner to obtain the “Settings” menu.

2. Then scroll down to obtain the “Advanced” option and click on it to expand it.

3. Afterward, select the “Reset” option and “Relaunch” Chrome.

Note: It is advisable to save all the links and tabs before clicking the “Reset” option. As such, data will permanently delete during this process.

This method may help you to overcome ERR_QUIC_PROTOCOL_ERROR.

See Also: 4 Ways to Fix the NET::ERR_CERT_AUTHORITY_INVALID Error

Method 4: Checking the Proxy or Firewall Settings

1. Go to the Internet Properties section by pressing the Windows key + R and typing in the command “inetcpl.cpl.”

Note: You can also search for “Control Panel” in your computer’s Start or Cortana search bar. Select “Internet Options” or the “Network and Internet” option.

2. Click the “Connection” option and select “LAN settings.” Ensure that there is no issue with the Firewall or proxy browser. If errors are present, fix those first.

3. Uncheck the “Use a Proxy Server for your LAN” option and check the “Automatically detect settings” option.

Finally, click “Ok” and “Apply” and then “Restart” the computer.

This will help ERR_QUIC_PROTOCOL_ERROR to fix.

Method 5: Temporarily Disabling the Firewall

1. At First, locate any Anti-virus program that may be present in the System Tray (depicted by an upward-facing arrow). Right-click on it and select “Disable.” Choose a short period for disabling the anti-virus program.

3. Then open the Chrome browser to see if the ERR_QUIC_PROTOCOL_ERROR has resolved. If it persists, go to the “System and Security” setting on the computer by searching for it in the Search or Cortana search bar or pressing the Windows key + I to open the “Control Panel” and select it.

5. Select the “Windows Firewall” option and select the “Turn Windows on or off” option from the panel on the left.

6. Select the option that turns off the firewall and then “Restart” the computer.

Note: Ensure to turn the Windows Firewall back on by following the same steps irrespective of whether the error has been fixed.

Also, Read –

• 3 Ways to Fix Err Connection Timed Out Error in Chrome
• {Solved} 5 Ways to Fix Windows Update Error 0x80070002
• 8 Ways to Fix Err_Connection_Reset Error in Google Chrome
• 10 Ways to Fix Steam Disk Write Error in Windows 10

Method 6: Downloading Software

Reimage Plus software is helpful as it can scan and replace corrupt files. Hence may be applicable in the case of system corruption.

FAQS

Conclusion

An interesting fact to note about the ERR_QUIC_PROTOCOL_ERROR error is that the cause of the error is still unknown. The error does not show up when Incognito Mode is being used, indicating the general area from which this error is believed to arise. Thus, we hope this article provides all the relevant information about the ERR_QUIC_PROTOCOL_ERROR and successfully illustrates how this error may be fixed.