在访问一个网站或浏览多个页面时，如果您收到此网页不可用、Err Connection Closed^{(This webpage is not available, Err Connection Closed)}消息并且网站无法加载，则仅表示您的网络连接存在问题。您还可能在Chrome、Edge和Firefox 等不同浏览器中遇到类似错误，包括Err_Network_Changed、Err_Connection_Reset 和Err_Internet_Disconnected错误。

修复 Err_Connection_Closed 错误

由于它是一个网络问题，因此您的 Windows 10 PC 和互联网连接对此负责。在按照以下步骤修复Err Connection^{(Err Connection)} Closed 问题之前，请务必尝试刷新浏览器。在开始之前，请检查您的 Internet 连接，然后按CTRL+F5硬重新加载网页^{(hard reload the web page)}，看看是否有效。

1]检查^(Check)您的网络电缆^{(Network Cables)}，重新启动路由器^{(Restart Your Router)}并重新连接^(Reconnect)

确保^(Make)检查您的 PC 或路由器的电缆是否就位。如果您通过WiFi连接，请务必重新启动一次路由器。最后，您始终可以让Windows忘记您已经连接的WiFi，然后重新连接。

2]删除代理

• 按 Windows 键 + R 然后键入“ inetcpl.cpl ”并按回车键打开 Internet 属性。^{(Internet Properties.)}
• 接下来，转到 连接选项卡^{(Connections tab)} 并选择 LAN 设置。
• ^{(Uncheck Use)}取消选中为您的LAN使用代理服务器^{(Proxy Server)}并确保选中“自动检测设置^{(Automatically detect settings)}”。
• 单击确定^{(Click Ok)}然后应用^(Apply)并重新启动您的 PC。

如果您使用的是第三方代理服务，请务必禁用它。

3]刷新DNS^{(Flush DNS)}，重置Winsock和重置TCP/IP

有时网站无法解析，因为您 PC 中的DNS仍会记住旧 IP。因此，请确保刷新 DNS^{(Flush the DNS)}、 重置 Winsock^{(Reset Winsock)} 和 重置 TCP/IP。

您也可以使用我们的免费软件 FixWin ，一键执行这三个操作。

4]使用谷歌公共DNS

如果没有帮助，请使用 Google 公共 DNS^{(Google Public DNS)} 并查看是否适合您。您需要 使用DNS IP地址明确更改^{(change the DNS settings)} 操作系统中的 DNS 设置。每当您在浏览器中输入域名时，众所周知，DNS会查找域名的 IP 地址并将结果返回给您。

• 首先^(First)，右键单击任务栏网络^(Network)图标并选择网络^(Network)和共享中心^{(Sharing Center)}。
• 选择“更改适配器设置”。
• 搜索用于连接互联网的网络连接；该选项可能是“本地连接”或“无线连接”。
• 右键单击它，然后单击属性。
• 选择新窗口以选择“ Internet 协议 4^{(Internet Protocol 4)} ( TCP/IPv4 )”，然后单击“属性^(Properties)”按钮。
• ^(Click)在新窗口中单击“使用^(Use)以下DNS服务器地址”复选框。^(DNS)
• 进入 8.8.8.8 和 8.8.4.4
• 最后，单击确定并退出。

5]暂时禁用防病毒和防火墙^{(5] Temporarily Disable Antivirus and Firewall)}

这两者都像是操作系统的安全卫士。如果它标记了一个恶意网站，甚至因为误报效应而认为它，这些网站的响应将被阻止。尝试禁用 AnitVirus和防火墙^(Firewall)，看看它是否有效。如果是这种情况，您必须将这些站点添加为例外，然后启用它。这应该像一个魅力。

6]禁用浏览器扩展^{(6] Disable Browser Extensions)}

有时扩展也可能导致问题。确保^(Make)禁用所有扩展^{(disable all extensions)}，然后尝试访问该网站。您可以使用隐身模式^{(Incognito mode)}，看看您是否可以访问该网站。如果您使用的是Chrome，请使用清理工具^{(use the Clean Up tool)}扫描浏览器恶意软件问题。

Hope something helps!

Fix Err_Connection_Closed error on Windows 11/10

While visiting a website or browsing multiple pages, if you gеt This webpage is not available, Err Connection Closed message and the website fails to load, then it simply means that there is some problem with your network connection.  You may also get similar errors including Err_Network_Changed, Err_Connection_Reset and Err_Internet_Disconnected errors in different browsers like Chrome, Edge, and Firefox.

Fix Err_Connection_Closed error

Since its, a network issue, your Windows 10 PC and the internet connection are responsible for this. Make sure to try refreshing your browser before following the steps below to fix the Err Connection Closed issue. Before you begin, check your internet connection and then press CTRL+F5 to hard reload the web page and see if that works.

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

Make sure you check your cables are in place either to your PC or to your router. If you connect through WiFi, make sure to restart your router once. Lastly, you can always make Windows forget the WiFi you are already connected to and then reconnect.

2] Remove Proxy

• 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.

3] Flush DNS, reset Winsock and reset TCP/IP

Sometimes the websites don’t resolve because the DNS in your PC still remembers the old IP. So make sure to Flush the DNS, Reset Winsock and Reset TCP/IP.

You can also use our freeware FixWin to carry out these three operations with a click.

4] Use Google Public DNS

If it does not help, use Google Public DNS and see if that works for you. You need to explicitly change the DNS settings in your operating system use the DNS IP addresses. Whenever you type the domain name into the browser, it is a known fact that DNS will look for the IP address of the domain name and return the result to you.

• First of all, right-click on the taskbar Network icon and select Network and Sharing Center.
• Select “Change Adapter Settings”.
• Search for the network connection that is used to connect to the internet; the option might be either “Local Area Connection” or “Wireless Connection”.
• Right-click on it and click Properties.
• Choose the new window to select “Internet Protocol 4 (TCP/IPv4)” and then click the Properties button.
• Click the checkbox for “Use the following DNS server addresses” in the new window.
• Enter in 8.8.8.8 and 8.8.4.4
• Finally, click OK and exit.

5] Temporarily Disable Antivirus and Firewall

Both of these are like security guards for the OS. If it marks a website which is malicious or even considers it because of false-positive effects, the response from those sites will be blocked. Try disabling both the AnitVirus and Firewall to see if it works. If that’s the case, you will have to add those sites as an exception, and then enable it. That should work like a charm.

6] Disable Browser Extensions

Sometimes extensions can also cause the problem. Make sure to disable all extensions and then try accessing the website. You may use the Incognito mode and see if you can access the website.  If you are using Chrome, use the Clean Up tool to scan for browser malware issues.

Hope something helps!

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