谷歌浏览器仍然是许多(Google Chrome)互联网(Internet)用户浏览网页的首选。它快速且安全，但有时会导致问题。例如，当您尝试连接到某个网站时，您可能会收到一条错误消息——此站点无法提供安全连接(This site can’t provide a secure connection)并显示以下错误代码ERR_SSL_PROTOCOL_ERROR。在大多数情况下，此错误是由服务器问题引起的，或者可能需要可能不可用的客户端身份验证证书。此外，同样的错误可能是由其他几个原因引起的。不过，这里有一些解决方案，您可以尝试解决烦人的问题。
ERR_SSL_PROTOCOL_ERROR
为了让用户能够在Chrome上安全浏览，Chrome要求网站使用可信赖的证书。一个安全的网站必须有值得信赖的SSL（安全套接层(Secure Sockets Layer)）证书。换句话说，如果该网站在Chrome上没有值得信赖的(Chrome)SSL认证，您可能会遇到此错误。
请参阅网站的URL。如果连接是安全的，地址应该以 https 开头（注意末尾的 s）。或者，您可以在Chrome(Chrome)的地址栏上查看安全状态。如何？在网站地址的左侧，检查安全状态。如果您的计算机屏幕上出现带有锁定图标的“安全”，则表示该网站是安全的。(Secure)除了“安全(Secure)”之外，如果您注意到“信息(Info)或不安全”或“不安全或危险”，您应该立即放弃该网站。
要在Windows 10中修复(Windows 10)Chrome上的ERR_SSL_PROTOCOL_ERROR，您必须：
- 禁用 Chrome QUIC 协议
- 配置正确的日期(Correct Date)和时间设置(Time Settings)
- 禁用您的Internet 浏览器扩展(Internet Browser Extensions)
- 清除您的 SSL 状态
- 更改您的互联网安全(Internet Security)和隐私级别(Privacy Level)
- (Exclude SSL)在您的防病毒(Antivirus)设置中排除 SSL协议扫描。
如果您确定该网站是真实的，请继续进行故障排除，如下所示：
1]禁用Chrome QUIC协议
在Chrome中禁用QUIC 协议方法是修复(QUIC Protocol)SSL错误的久经考验的方法之一。所以如果你想在谷歌Chrome浏览器上禁用(Google Chrome)QUIC协议，复制下面的地址粘贴到地址栏
“ chrome://flags/#enable-quic ” 并按 Enter。
接下来，在下拉列表中选择“已禁用”，然后重新启动您的Google Chrome浏览器。此后(Hereafter)，您应该不再 在Google Chrome中看到(Google Chrome)SSL_PROTOCOL_ERROR。
2]配置正确的日期(Configure Correct Date)和时间设置(Time Settings)
有时，日期和时间设置的更改也会导致这种冲突。因此，最好适当地配置此设置
首先，在搜索框中键入日期(Date)和时间(Time)设置并选择此设置。接下来，单击“更改日期(Date)和时间(Time)”进行更改。
单击(Click)“时区”进行更改。
完成后，按确定。
3]禁用(Disable)您的互联网浏览器扩展(Internet Browser Extensions)
当您遇到 ssl 连接错误时，请尝试在隐身模式下启动Google Chrome并在隐身(Incognito)模式下加载具有 ssl 连接错误的相同网页。如果您可以访问该网页，则可以确定您的某个扩展程序给出了此错误。尝试找出罪魁祸首扩展，然后禁用它或删除扩展。为此，请打开Google Chrome浏览器，单击右上角的菜单(Menu)图标，然后选择“更多工具”选项。
接下来，单击那里的扩展(Extensions)选项，然后取消选中针对要禁用的扩展标记的启用选项。(Enabled)
然后，单击删除(Remove)以将其完全删除。
4]清除您的SSL状态
有时SSL状态会在不知不觉中阻止SSL连接。继续执行以下步骤以清除您的SSL状态：
打开控制面板并单击类别部分中的网络和 Internet小程序。(Network and Internet)
然后，选择网络和共享中心(Network and Sharing Center)，然后选择 Internet 选项。
最后，单击Content选项卡中的Clear SSL state并按 OK 按钮。
5]更改您的互联网安全(Change Your Internet Security)和隐私级别(Privacy Level)
如果您将“高”级别设置为您的安全和隐私级别，它可能会阻止一些未知连接，包括SSL连接。这可能会导致Err_SSL_Protocol_Error错误在您的计算机屏幕上闪烁。
通过将这些设置更改为“中(Medium)”或“低”，您可以解决此问题，并且您的SSL连接将不再被阻止。要更改您的 Internet 安全和隐私级别，请打开控制面板(Control Panel)并选择Internet 选项(Options)。
接下来，选择“安全”选项卡并设置“中”级别。
对“隐私”选项卡执行相同操作。更改这些设置后，请尝试再次重新加载您的Google Chrome浏览器，以确认问题是否已解决或仍然存在。
5]在您的防病毒(Antivirus)设置中排除 SSL(Exclude SSL)协议扫描
有时，防病毒(Antivirus)应用程序可能会导致未知问题。因此，要解决此问题，只需转到Setup > Advance设置> Protocol过滤” >“ SSL ” > '不扫描SSL协议'。为什么需要这样做？因为有时，防病毒和加密数据之间的冲突是不可避免的。如果此方法可以帮助您成功解决问题，请更新您的浏览器(update your browser)、防病毒软件和操作系统。此外，清除您的浏览器数据并尝试再次启用您的SSL扫描程序。
让我们知道这里是否对您有所帮助。(Let us know if anything here helped you.)
Fix ERR_SSL_PROTOCOL_ERROR on Google Chrome
Google Chrome remains the preferred choice for many Internet users for browsing the web. It is fast and secure but sometimes is known to cause problems. For example, when you try to connect to a website, you may receive an error message – This site can’t provide a secure connection and displays the following error code ERR_SSL_PROTOCOL_ERROR. On most occasions, this error is due to a problem with the server, or it may be requiring a client authentication certificate that might not be available. Also, the same error could be caused by other several reasons. Nevertheless, here are a few solutions that you can try to fix the nagging issue.
ERR_SSL_PROTOCOL_ERROR
To enable users to browse safely on Chrome, Chrome requires websites to use trustworthy certificates. A secure website must have trustworthy SSL (Secure Sockets Layer) certificates. In other words, if the website doesn’t have a trustworthy SSL certification on Chrome, you may face this error.
See the URL of the website. If the connection is secure, the address should begin with https (note the s at the end). Alternatively, you can check the security status on the address bar of Chrome. How? To the left of the website address, check the security status. If ‘Secure’ with a lock icon appears on your computer screen, it means the website is secure. Besides ‘Secure’, if you notice ‘Info or not secure’ or ‘Not secure or dangerous’ you should abandon the website immediately.
To fix ERR_SSL_PROTOCOL_ERROR on Chrome in Windows 10, you have to:
- Disable Chrome QUIC Protocol
- Configure Correct Date and Time Settings
- Disable your Internet Browser Extensions
- Clear your SSL state
- Change Your Internet Security And Privacy Level
- Exclude SSL protocol scanning in your Antivirus settings.
If you are sure that the website is genuine, proceed to troubleshoot, as follows:
1] Disable Chrome QUIC Protocol
Disabling of QUIC Protocol method in Chrome is one of the tried and tested method to fix SSL error. So if you want to disable QUIC protocol on Google Chrome browser, copy the following address and paste it into the address bar
“chrome://flags/#enable-quic” and hit Enter.
Next, select “Disabled” in the drop-down list and then restart your Google Chrome browser. Hereafter, you should stop seeing SSL_PROTOCOL_ERROR in Google Chrome.
2] Configure Correct Date and Time Settings
Sometimes, a change in date and time settings too can cause this conflict. So, it better to configure this setting appropriately
First, type Date and Time settings in the search box and choose this setting. Next, click on “change Date & Time” to change it.
Click on “Time Zone” to change the same.
When done, press OK.
3] Disable your Internet Browser Extensions
When you face ssl connection error, try launching Google Chrome in Incognito mode and load the same web page with ssl connection error in incognito mode. If you can access the webpage, you can be sure that one of your extensions is giving this error. Try to find out the culprit extension and then disable it or remove the extension. To do so, open Google Chrome browser, click on the Menu icon visible at the top right, and select ‘More Tools‘ option.
Next, click on the Extensions options there and uncheck the Enabled option marked against the extension you want to disable.
Then, click on Remove to delete it completely.
4] Clear your SSL state
Sometimes the SSL state can unknowingly block the SSL connection. Proceed with these steps to clear your SSL state:
Open Control Panel and click Network and Internet applet in the Category section.
Then, select Network and Sharing Center and choose Internet Options.
Finally, click Clear SSL state in the Content tab and press the OK button.
5] Change Your Internet Security And Privacy Level
If you have set the “High” level as your security and privacy level, it might block some unknown connections, including SSL connections. That may result in Err_SSL_Protocol_Error error flashing on your computer screen.
By changing these settings to be “Medium” or “Low”, you can fix this issue, and your SSL connections will not be blocked anymore. To change your internet security and privacy level, open Control Panel and choose Internet Options.
Next, select the “Security” tab and set “Medium” level.
Do the same with the “Privacy” tab. After changing these settings, try to reload your Google Chrome browser again to confirm if the issue is resolved or persists.
5] Exclude SSL protocol scanning in your Antivirus settings
Sometimes, an Antivirus application can cause unknown problems. So, to fix this, simply go to Setup > Advance setting > Protocol filtering” >“SSL” > ‘Do not scan SSL protocol’. Why do you need to do this? Because at times, conflicts between antivirus and encrypted data is inevitable. If this method helps you troubleshoot the problem successfully, then, update your browser, your antivirus, and operating system. Also, clear your browser data and try to enable your SSL scanner again.
Let us know if anything here helped you.
