Checking the proxy and the firewall Running Windows Network Diagnostics ,unexpectedly closed the connection.This Site Can't Be Reached ERR_CONNECTION_REFUSED in Google chrome- Fixed easily

Here's what to do if Chrome isn't allowing you to view Microsoft websites

If you've recently noticed that Google Chrome doesn't allow you to view select Microsoft websites, you're not alone. Apparently, several users are experiencing an issue that occurs when they try to visit official Microsoft websites. When attempting to do so, Chrome throws a "This site can't be reached ( unexpectedly closed the connection)" error, asking users to check their internet connections or reconfigure proxy and firewall settings. While both of these methods do not work, there is another easy fix.

The site cannot be reached unexpectedly closed the connection.

ERR_CONNECTION_CLOSED: How to fix the connection error

In 2008, Google released the first version of its own web browser Chrome. Despite the strong competition from Internet Explorer and Firefox, etc., the application was successful in the years to come. According to the web statistics portal W3Counter, Chrome's market share today isover 50 percent (as of June 2018). The driving force behind the rapid rise was - in addition to excellent marketing campaigns (particularly also via its own search engine) - primarily the brand name Google itself. Even though the browser performs brilliantly, it is also prone to errors, which leave its users confronted with cryptic messages.

The error message "ERR_CONNECTION_CLOSED", for example, informs you that the connection to the desired website has been closed. As far as the causes are concerned, however, the user is left in the dark, which makes fixing the error an almost unsolvable task especially because the error does not necessarily have to be caused by Chrome. In our article we show you possible sources of errors and some useful approaches to fixing the "ERR_CONNECTION_CLOSED" error.

Contents What does “ERR_CONNECTION_CLOSED” mean? How to fix the “ERR_CONNECTION_CLOSED” error What does “ERR_CONNECTION_CLOSED” mean? You may encounter the message "ERR_CONNECTION_CLOSED" when you try to access a website. This is Chrome’s way of informing you that the data transfer, which is necessary to establish the connection, has been interrupted. More precisely, the connection between browser and server was closed, which is also indicated by the name of the error. The web server or proxy server, which processes the request provided by the browser, always initiates the connection separation. How to fix the “ERR_CONNECTION_CLOSED” error In addition to the "ERR_CONNECTION_CLOSED" message, several very different solutions are usually also displayed, which emphasizes the real problem with the message: It does not reveal any details about why the connection interruption happened. This means that there is no basic solution for fixing the "ERR_CONNECTION_CLOSED" error, but only various solutions that you can try one after the other. We have compiled the most promising methods for troubleshooting in Windows. Buy one .com, get one .us free! Register a .com now and get a free first-year .us domain. Don't miss out — sale ends on July 31st. Matching emailSSL certificate24/7/365 support Solution 1: Check internet connection and restart router if necessary Before you delve deeply into the configuration of the system and browser to find the source of the "ERR_CONNECTION_CLOSED" error and fix it, first check your internet connection. With Windows, for example, you can do this via the network symbol in the notification area (also called the System Tray). There you can see not only the network to which you are currently connected, but also the connection status. Notification field in Windows 8: Network connection Use the icon in the Windows notification field to open the Network and Sharing Center to get more detailed information on established connections. If the connection to the internet is correct, you should find "Internet access" here (see screenshot) - otherwise you should make sure that all cables in your network device are connected correctly. If this is the case, you can also try restarting the router by temporarily disconnecting the power to the device (for 30 seconds or more).

Note If you are connected to the internet via WLAN and have the option of switching to a cable connection, you should use this option as soon as your browser displays the "ERR_CONNECTION_CLOSED" message. This is because spontaneous disconnections are not uncommon with wireless transmission - especially if you generally have to deal with signal strength fluctuations. Solution 2: Reset network settings Connection problems that lead to errors such as the "ERR_CONNECTION_CLOSED" message may also be due to errors in the system's TCP/IP setup. However, you can solve this problem by resetting the settings for the TCP/IP stack to their original state. All you need is administrator rights and the command line tool Netshell (netsh), which has been installed by default since Windows 2000. To start the command prompt as an administrator, first access the Start menu (Windows icon) and enter the term "cmd" in the search bar. Then right-click on the cmd application presented as a search result and select "Run as administrator": Windows 8: Run Command Prompt as Administrator You will also find the prompt in the Windows Start menu under "All Programs" -> "Accessories". Now you can reset the TCP/IP settings with the following Netshell command: netsh int ip reset Before you restart the computer to make the changes take effect, we recommend you reset the Winsock interface (also Windows Sockets). All connections of programs that access the internet protocol run through these. Winsock also creates entries for all established and failed connections in the so-called Winsock catalogue. As in the case of a protocol reset, you can use the command prompt program Netshell. The necessary command is as follows: netsh winsock reset Solution

 3: Disable proxy server and VPN connections Proxies and VPN connections offer you - each in their own way - the possibility of remaining anonymous during your time on the internet. Both solutions are actively involved in the data transfer process, which is why they can also cause complications and, for example, cause the "ERR_CONNECTION_RESET" error. If you use one of the two bridging techniques, you should deactivate it - at least for testing purposes - or - in the case of VPN - not use it. To deactivate the proxy server, you need the "Internet settings" menu, which can be accessed via the control panel: Windows 8: Control Panel In the icon view the button "Internet Options" is visible by default - if you have activated the category view, you have to select "Network and Internet" first. Then switch to the "Connections" tab. In the upper window you will find a list of configured VPN and dial-up connections. If you have set up a VPN connection, you can also simply delete it here using the "Remove" button: Menu "Internet Options" in Windows 8 If you delete a VPN connection, you can re-establish it later via "Add VPN". 

The configuration of the proxy settings works via the "LAN settings" option, which can be found in the lower part of the window: Windows 8: Local Network Settings The "LAN Settings" button is located under the "Local Area Network Settings" category. Under "Proxy server" uncheck "Use proxy server for LAN" to deactivate the configured proxy. Note If you have installed extensions with proxy or VPN functions, you should also disable or delete them. Solution 4: Clear DNS cache DNS server name resolution is one of the most important mechanisms of the internet. So that the conversion of domain addresses into their numerical counterparts does not have to be carried out every time a certain website is accessed, both DNS servers and browsers create address entries in the so-called DNS cache. This results in faster loading times, but can also lead to technical problems such as the "ERR_CONNECTION_CLOSED" error if entries are outdated and no longer compatible with the current version of the website. A possible solution is DNS flush, which completely empties the address cache. For example, you can reset the system cache using the following command from the command line: ipconfig /flushdns To clear the Chrome DNS cache, you must first enter the following in the address bar: chrome://net-internals/#dns This will open the DNS settings in the hidden options menu "Net Internals". In addition to a list of valid and expired DNS entries, here you will find the "Clear host cache" button, which can be used to clear the cache. Google Chrome: "Net Internals" menu In the "Net Internals" menu you will not only find Chrome's DNS cache, but also various statistics (e.g. on data consumption or HTTP sessions created). Solution 5: Obtain or change DNS servers manually It’s not only the cache of the used DNS server that can become a problem: If the availability of the server is limited or the server is completely down, the connection may also be interrupted and the Chrome error message may appear. Usually you obtain the address of the DNS server automatically, so that you are assigned a local nameserver from your internet provider. However, you have the option of entering the server manually and thus transferring the name resolution task to another server in order to fix the "ERR_CONNECTION_CLOSED" message. To do this, proceed as follows: Open the overview of active network connections, for example via the Network and Sharing Center or the key combination [Windows key] +[R] followed by the entry "ncpa.cpl". Windows 8: Running ncpa.cpl The ncpa.cpl control panel takes Windows users directly to the network connection map. Right-click on the network connection via which you are connected to the internet and click on "Properties" in the pop-up menu (requires administrator rights). Search for the entry "Internet Protocol Version 4 (TCP/IPv4)" and open the protocol’s configuration menu by double clicking. Leave the IP address settings unchanged (automatically or manually entered address) and select the option "Use the following DNS server addresses" in the lower area of the menu. Then enter the server addresses of your choice. For example, the addresses of Google servers ( and are recommended: DNS server settings for Windows Additionally to the Google DNS addresses, you can enter any other addresses in the IP properties like the DNS server addresses of the CND provider Cloudflare ( or 

Solution 6: Check firewall and anti-virus software and deactivate if necessary Due to the numerous, diverse dangers that accompany your daily activities on the web, it’s imperative to use security software. But even though modern firewalls, real-time scanners and the like usually do a first-class job, these tools are not infallible. Incorrect configurations, software errors or outdated program files can cause connection errors such as the "ERR_CONNECTION_CLOSED" error. In this case, check whether updating these solves the problem or whether the target website’s address is on one of your security programs’ blacklists. If you do not succeed, you can try temporarily disabling the firewall and anti-virus software and then reloading the page. Solution 7: Malware check with the Chrome Cleanup Tool Even the best security setup does not offer 100% protection against malware. Therefore, you can never rule out that your system has been infected with malicious software and this is what’s causing the disconnections. For this purpose, Chrome offers its own solution for detecting and removing malware, which you can start directly in the browser settings. To do this, open the settings menu by clicking on the three-point symbol and selecting "Settings": Google Chrome: menu access via the three-point button You can also access the settings in Chrome from the address bar by typing chrome://settings. Select "Advanced" to expand the advanced options menu. Under "Reset and clean up" you will find the "Clean up computer" button, which leads you to the cleanup tool: Google Chrome: Reset and clean up Under the menu item "Reset and Cleanup", you can start the Cleanup Tool or reset Chrome to its default values. To start the tool, click on "SEARCH". If you don't want Chrome to collect information about detected malware as well as your system settings and processes, you need to move the slider to the left under "Report details to Google". Google Chrome Cleanup Tool If Chrome's cleanup tool encounters malicious software, you will receive a notification so you can remove it immediately. Solution 8: Deactivate extensions and delete them if necessary Extensions in Chrome are important building blocks for extending the functionality of the Google browser. 

There are thousands of free extensions available in the Chrome Store, which are extremely practical in principle, but also cause problems such as the "ERR_CONNECTION_CLOSED" error - especially if the extensions are no longer compatible with the current browser version. To check whether an installed extension is the cause of the error message, deactivate it temporarily. Simply enter the URL chrome://extensions in the address bar and move the sliders below each extension to the left: List of the installed Chrome extensions Deactivated extensions can be switched on again at any time by moving the slider to the right again. If the target page opens after the extensions have been disabled, you know that one or more were responsible for the error. Activate the extensions one by one to find the culprit(s) and then delete them using the "REMOVE" button. Solution 9: Update Chrome If you do not have the latest version of Chrome installed, you may also get disconnected from time to time. You should therefore make sure that your browser is up to date, which you can do by entering the following URL in the browser bar: chrome://settings/help Chrome then checks if the current version is installed and automatically starts the update process if you are using an outdated version. If your browser is up to date, you will see the message "Google Chrome is up to date": Google Chrome: Version check Even if Google Chrome is working fine and you don't have any problems accessing websites, you should check regularly if a new version is available for security reasons Solution 10: Reinstall Chrome If you have not been successful with the methods listed for fixing the "ERR_CONNECTION_CLOSED" message, your last option is to completely uninstall the browser and then reinstall it. Remember, however, that all settings will be lost. 28.02.19Technical matters

How to Fix Error Connection Closed Error in Google Chrome?

Google Chrome shows different type of browser errors when connecting to internet. One of the popular errors is connection closed error that you will see in the browser as “Err_Connection_Closed”. This generally occurs in Chrome when there are invalid configurations in your network devices and mismatched server certificates may also cause this error. Fortunately, it is easy to fix the connection closed error by following simple steps explained in this article.

Connection Closed Error in Google Chrome

Chrome will show the message like below indicating the the site can’t be reached due to “Err_Connection_Closed” error. It won’t be possible for you to proceed further whenever you see this message on the browser.

elated: How to fix err_network_changederr_connection_reset and err_internet_disconnected errors in Google Chrome.

How to Fix Connection Closed Error?

  1. Check your internet connection
  2. Check the firewall connection
  3. Disable proxy server and VPN
  4. Reset TCP/IP settings
  5. Flush DNS
  6. Clear Chrome cache
  7. Use Google DNS
  8. Use Chrome cleanup tool
  9. Remove Chrome extensions
  10. Reset Chrome settings
  11. Update to latest version
  12. Delete and reinstall Chrome

Let us discuss each solution in detail.

Solution 1 : Check Your Internet Connection

Often the cables of your modem or router may have loose connection and drop the internet. It is also a common problem for the Wi-Fi gets disconnected in Windows 10. So check your internet connection by using other devices like mobile phone or by opening other apps on your laptop. Once the connection is stable, just refresh the page showing “err_connection_closed” error to see it opens.

Solution 2 : Check Firewall Connection

The misconfigured firewall on your PC or Mac can result in different types of browser errors. Disable the firewall temporarily to check the webpages are opening properly. On Windows 10 you can disable the firewall under “System and Security” settings. On Mac this can be done in “Security & Privacy” option under “System Preferences” settings. Learn more on how to manage firewall settings in Windows 10 and Mac.

Solution 3 : Disable Proxy and VPN Setup

Proxies and VPN are used to bypass the network of your Internet Service Provider and access the internet anonymously. Disable proxy servers under “LAN Settings” to see if that helps.

You can disable proxies in Mac under “Network” option under “System Preferences”.

Similar to proxies, VPN connection can also cause unexpected problems and result in connection closed error. However, VPN configuration depends on whether you have manually installed the profile or using the app. At any case disable the profile or close the app and check the page can be connected normally.

Solution 4 : Reset TCP/IP settings

Resetting the network connection can sometime help you to fix connection closed error. Press Windows key and then R to open Run dialog box. Type in “cmd” to open the command prompt.

  • Open Command Prompt from Run

Enter the following commands in the command prompt window and hit enter after each one.

nbtstat –r
netsh int ip reset
netsh winsock reset

Restart the PC after applying these changes and check whether you still encounter the error. You can also assign static IP address to check if that works.

Solution 5 : Flush DNS

Sometimes the corrupted DNS on your PC may also cause the error_connection_closed error. You can flush the DNS by opening the command prompt as explained above and use the below command in Windows PC.

ipconfig /flushdns

Solution 6 : Clear Chrome Cache

  • Go to the Chrome URL “chrome://settings/clearBrowserData” and delete all your browsing history and cache from the beginning. This will remove all corrupted and incorrect cached files which may be preventing the page to load.
  • Make sure to check the options Browsing history, Download history, Cookies and other site data and Cached images and files.
  • Solution 7 : Use Google DNS

By default Chrome will get the DNS details from your ISP and try to resolve the site address into a IP address. When your ISP or any of the upstream DNS servers are misconfigured then you will see difficulty in opening the page. The solution here is to try using Google public DNS which can help to resolve the site address to a IP address faster than using your ISP’s DNS settings.

Solution 8 : Use Chrome Cleanup Tool

Google offers an official tool that helps users to scan and remove malware like programs from the PC. These malware programs can interrupt your connection and cause “err_connection_closed” error. Install the tool on your PC and follow the instructions to scan and remove the unnecessary programs that interfere with Chrome.

Solution 9 : Remove Chrome Extensions

Extensions are additional piece of software code that enhance the functionality of your Chrome browser. There are thousands of free extensions available in Chrome store. But these extensions, especially incompatible ones installed on your browser can cause problem. Go to the URL “chrome://extensions/” in address bar and disable all the installed extensions. Open the webpage again and check the problem is resolved. If the problem is resolved then you can install the extensions one by one to narrow down the issue and find the extension that causes the problem.

Solution 10 : Reset Chrome Settings

Similar to restarting PC, resetting your Chrome can resolve most of the browser errors. Go to “chrome://settings/reset” and click on the “Reset” option. Again click on the “Reset” button in the next dialog box to restore the browser to initial settings.

Solution 11 : Update to Latest Version Also ensure that you have latest Chrome version installed. You can check the current installed version and do the auto update by going to the URL “chrome://settings/help” or “chrome://chrome”.

Solution 12 : Delete and Reinstall Chrome

If none of the above listed solutions work for you then the final option is to completely delete the browser and reinstall. Of course this should be the last option since you may loose all the current settings on your browser.


ERR_CONNECTION_CLOSED in Google Chrome FIX [Tutorial]


1] Check your Network Cables, Restart Your Router and Reconnect


·         2. Press Windows Key + R then type “inetcpl.cpl” and hit enter to open Internet Properties.

·         Next, Go to Connections tab and select LAN settings.

·         Uncheck Use a Proxy Server for your LAN and make sure “Automatically detect settings” is checked.

·         Click Ok then Apply and reboot your PC.

If you are using a third-party proxy service, make sure to disable it.


ipconfig /release


Inconfig /flushdns

netsh winsock reset


cmd ctrl+R

netsh int ip reset c:\resetlog.txt and press

netsh winsock reset and press








ipconfig /renew

ipconfig /renew


net stop dnscache

net start dnscache



 netsh_winsock _reset_catalog

netsh winsock reset catalog


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