{"id":510,"date":"2022-12-16T07:23:00","date_gmt":"2022-12-16T07:23:00","guid":{"rendered":"https:\/\/cheapsslweb.com\/blog\/?p=510"},"modified":"2025-11-21T05:43:22","modified_gmt":"2025-11-21T05:43:22","slug":"fix-neterr-ssl-protocol-error-in-google-chrome","status":"publish","type":"post","link":"https:\/\/cheapsslweb.com\/blog\/fix-neterr-ssl-protocol-error-in-google-chrome\/","title":{"rendered":"How to Resolve ERR_SSL_PROTOCOL_ERROR in Chrome?"},"content":{"rendered":"\n<div style=\"height:11px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The ERR_SSL_PROTOCOL_ERROR is a common issue that prevents a secure connection between a browser and a website. It usually occurs due to problems with the SSL certificate, such as expiration, misconfiguration, or incompatibility in the <a href=\"https:\/\/cheapsslweb.com\/blog\/ssl-tls-handshake-explained-process-work-and-importance\/\">SSL\/TLS handshake process<\/a>. This error can affect any browser or device, blocking access to sites that require encrypted communication.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most of us use Google Chrome to surf the web and find the necessary information. <\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">As per stats, there are close to 2.65 billion users in the world that use Google Chrome as their default browser. The massive usage of browsers is due to their widespread compatibility, user-friendliness, and interface. <\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">However, besides providing a top-notch user experience, the browser may tease you with errors, such as ERR_SSL_PROTOCOL_ERROR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Definition of ERR_SSL_PROTOCOL_ERROR<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The ERR_SSL_PROTOCOL_ERROR is a browser message signaling a problem with the SSL or TLS protocol during a website connection attempt. It means the browser cannot complete the process required to establish a secure, encrypted link.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why does it Occur?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This error may appear when the SSL certificate is expired, revoked, or incorrectly installed. It can also result from outdated or incompatible security protocols on either the client or server side.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you are facing the ERR_SSL_PROTOCOL_ERROR on your PC, there is not one reason for it. There can be many, and here are some of them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The core issue behind this error is that the website cannot connect with the browser or Google Chrome.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The SSL state of your system might not be right.<\/li>\n\n\n\n<li>The cache of your browser could be causing the problem.<\/li>\n\n\n\n<li>The firewall on the computer may be blocking the browser extension.<\/li>\n\n\n\n<li>Your PC is not having the right date and time.<\/li>\n\n\n\n<li>An Older version of the SSL certificate.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">There are many reasons, but the critical issue is that a secure connection cannot be established as the SSL certificate is involved. An updated SSL certificate is essential as it establishes a secure connection.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ERR_SSL_PROTOCOL_ERROR Looks in Different Browsers<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This error message shows up in multiple ways depending on the browser such as Chrome, Firefox and Edge.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ERR_SSL_PROTOCOL_ERROR&nbsp;Chrome:<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.networksolutions.com\/blog\/wp-content\/uploads\/2025\/08\/ERR_SSL-chrome-version.png\" alt=\"ERR_SSL_protocol chrome version\" class=\"wp-image-22453\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Secure Connection Failed Firefox:&nbsp;<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"644\" height=\"250\" src=\"https:\/\/cheapsslweb.com\/blog\/wp-content\/uploads\/2022\/12\/image-1.webp\" alt=\"Secure Connection Failed Firefox\" class=\"wp-image-3639\" srcset=\"https:\/\/cheapsslweb.com\/blog\/wp-content\/uploads\/2022\/12\/image-1.webp 644w, https:\/\/cheapsslweb.com\/blog\/wp-content\/uploads\/2022\/12\/image-1-300x116.webp 300w\" sizes=\"(max-width: 644px) 100vw, 644px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Read Also:<\/strong> <a href=\"https:\/\/cheapsslweb.com\/blog\/secure-connection-failed-firefox\/\">How to Fix \u201cSecure Connection Failed\u201d Error in Firefox<\/a>?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can\u2019t connect securely to this page Microsoft Edge: <\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"370\" src=\"https:\/\/cheapsslweb.com\/blog\/wp-content\/uploads\/2022\/12\/image.webp\" alt=\"SSL Protocol Error Edge\" class=\"wp-image-3638\" srcset=\"https:\/\/cheapsslweb.com\/blog\/wp-content\/uploads\/2022\/12\/image.webp 800w, https:\/\/cheapsslweb.com\/blog\/wp-content\/uploads\/2022\/12\/image-300x139.webp 300w, https:\/\/cheapsslweb.com\/blog\/wp-content\/uploads\/2022\/12\/image-768x355.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-fix-the-err-ssl-protocol-error-in-google-chrome\">How to Fix the ERR_SSL_PROTOCOL_ERROR in Google Chrome?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If we had to unravel the methods to fix TLS or SSL protocol errors in Google Chrome, many of them exist. Let\u2019s take a look at them one after the other!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-rectify-the-date-and-time-on-the-pc\">Rectify the Date and Time on the PC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some of you might be thinking about how date and time can lead to the SSL protocol error in the browser. It can. You see, the <a href=\"https:\/\/cheapsslweb.com\/\">SSL certificate<\/a> the websites use for security has an expiration date.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If the date and time of your system are not synced with that of the server, the error can pop up on the screen. Make sure you rectify the date and time on your system to eliminate the SSL error in Chrome.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The validity of most SSL certificates is 1-5 years. The rest depends on the plan you have opted for.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Get Rid of the Browsing History<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is not the spot-on solution for the error, but it is something that you should do regularly. Try clearing the browsing history along with the cache data. As per the developers, the CSS changes may not be visible if the machine&#8217;s cache is unclear.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Deleting browsing data in Google Chrome is easy.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fire up<\/strong> the Google Chrome browser.<\/li>\n\n\n\n<li>Press <strong>Ctrl+Shift+Delete<\/strong>.<\/li>\n\n\n\n<li><strong>Click on the drop-down<\/strong> and select \u201c<strong>All Time<\/strong>\u201d<\/li>\n\n\n\n<li>Check the<strong> cache and cookies<\/strong> checkbox and tap the clear option at the bottom.<\/li>\n\n\n\n<li><strong>Restart the browser <\/strong>and check if the error shows.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If the issue is still there, shift to the next method.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-the-ssl-state-file\">The SSL State File<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The current SSL state can be a potential reason behind the error. Therefore, you should try clearing your computer&#8217;s SSL state.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tap on the icon<\/strong> that has three dots on the top right of Google Chrome.<\/li>\n\n\n\n<li>Look for the <strong>settings option<\/strong> here.<\/li>\n\n\n\n<li>Scroll down and tap on the <strong>Advanced option<\/strong>.<\/li>\n\n\n\n<li><span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\">Check the <strong>Open Proxy Settings option<\/strong> in the browser&#8217;s advanced settings<\/span>.<\/li>\n\n\n\n<li>Up next, you will see a window of <strong>\u201cInternet Properties.\u201d<\/strong><\/li>\n\n\n\n<li>Click on the Content Tab and then the <strong>Clear SSL State button<\/strong> in the window.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Restart your browser and verify if the system error persists.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Also Read:<\/strong> <a href=\"https:\/\/cheapsslweb.com\/resources\/how-to-clear-ssl-state-in-chrome\">How to Clear SSL State in Chrome?<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-the-quic-protocol-fix-for-err-ssl-protocol-error\">Using QUIC Protocol<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/cheapsslweb.com\/blog\/what-are-quic-and-http-3-difference-between-http-3-and-http-2\/\">QUIC protocol<\/a> is equivalent to SSL\/TLS. It helps provide an SSL-equivalent connection to Google servers. Though this fix is not recommended, <strong>it can sometimes be beneficial:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Open the Google Chrome browser and type the command in the address bar of the browser, <strong>chrome:\/\/flags\/#enable-quic<\/strong>.<\/li>\n\n\n\n<li>The page will show you various options, including the <strong>Experimental QUIC protocol<\/strong>.<\/li>\n\n\n\n<li>It will be <strong>marked default<\/strong>. You need to click on the dropdown and select disabled.<\/li>\n\n\n\n<li><strong>Relaunch the Google Chrome browser<\/strong> and verify if the error is gone.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-internet-browser-extensions\">Internet Browser Extensions<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Google Chrome is a browser that is the first choice of millions of users. Among many other reasons, one is the presence of numerous helpful extensions. Though these extensions can be a huge plus for you, they can also be a con. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this case, browser extensions can be a reason behind the TLS protocol error.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can disable the extensions individually and verify which is causing the error. Once you find the extension, you can disable it or remove it altogether.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-6-make-changes-to-internet-security-and-privacy-level\">Make Changes to Internet Security and Privacy Level<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is not the last resort to fix ERR_SSL_PROTOCOL_ERROR, but it needs to be tried. Sometimes, your PC might have higher security and privacy levels to protect you from unsafe websites. Hence, you can try changing those settings and check if it resolves the error.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To change the settings, enter Internet Options in the search bar of your PC and tap enter. You will see an <strong>Internet Properties dialog box<\/strong>. Click on the Security tab.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the tab, you will see a slider for the security level for this zone. If that slider is too high, bring it to a medium level. <strong>Click on OK or Apply<\/strong> and recheck if the error is gone.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-7-remove-your-system-hosts-file\">Remove your System Hosts File<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The host file in your PC can block or redirect hostnames on your PC. Hence, if the host that you are struggling to connect to is blocked in it, you can delete the host file to fix this issue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Here is how you can remove the system hosts file.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Press the Windows icon<\/strong> key with <strong>R<\/strong> on the keyboard.<\/li>\n\n\n\n<li>Type in the box <strong>C:\\\\Windows\\\\System32\\\\drivers\\\\etc<\/strong>.<\/li>\n\n\n\n<li><strong>Press the Enter key.<\/strong><\/li>\n\n\n\n<li>Look for the <strong>hosts file<\/strong> in the opened folder and right-click on it. Choose Delete.<\/li>\n\n\n\n<li>If asked, confirm the deletion and check if the error is fixed.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-8-take-care-of-firewall-and-antivirus-settings\">Take Care of Firewall and Antivirus Settings<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The firewall of your PC can also be a culprit behind the ERR_SSL_PROTOCOL_ERROR. It may block some of the IP addresses of the websites. Hence, you must check the firewall settings and see if the website IP address exists. If it is, remove it and try opening the link.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you have an antivirus installed on your computer, it could be a less likely reason for the error. <strong>To fix the error, check the antivirus settings and make changes to see if it works.<\/strong> If it does not work, ensure that you revert the changes to the original, as it might attract more issues.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Preventing Future SSL_PROTOCOL_ERROR Incidents<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Avoiding ERR_SSL_PROTOCOL_ERROR requires consistent attention to SSL certificate management, maintaining updated software, and following security best practices. Proactive steps in these areas reduce the risk of connection failures due to SSL protocol issues.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Regular Browser and System Updates<\/li>\n\n\n\n<li>Regular <a href=\"https:\/\/cheapsslweb.com\/blog\/ssl-certificate-renewal-best-practices\/\">Certificate Renewals<\/a><\/li>\n\n\n\n<li>Use strong encryption protocols like <a href=\"https:\/\/cheapsslweb.com\/blog\/tls-versions-explained-difference-between-tls-1-2-and-1-3\/\">TLS 1.2 or TLS 1.3<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hence, if you are facing this error, you are free to try all of them one after the other to see which one works for you. Rest if you want to <a href=\"https:\/\/cheapsslweb.com\/buy-ssl-certificates\">get a new SSL certificate<\/a>, CheapSSLWeb is the place for you.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The ERR_SSL_PROTOCOL_ERROR is a common issue that prevents a secure connection between a browser and a website. It usually occurs due to problems with the SSL certificate, such as expiration, misconfiguration, or incompatibility in the SSL\/TLS handshake process. This error can affect any browser or device, blocking access to sites that require encrypted communication. Most&hellip; <a class=\"more-link\" href=\"https:\/\/cheapsslweb.com\/blog\/fix-neterr-ssl-protocol-error-in-google-chrome\/\">Continue reading <span class=\"screen-reader-text\">How to Resolve ERR_SSL_PROTOCOL_ERROR in Chrome?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":2965,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[235,236],"class_list":["post-510","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ssl-errors","tag-ssl-protocol-error","tag-ssl_protocol_error_chrome","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fix ERR_SSL_PROTOCOL_ERROR in Chrome &amp; Other Browsers<\/title>\n<meta name=\"description\" content=\"Step-by-step instructions on how to resolve ERR SSL PROTOCOL ERROR in Chrome. 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