Domain without prefix (www) works while domain including prefix (www) won't work with Internet Explorer 11 on Windows 7 32-bit

Internet Explorer 11 has a peculiar issue when it comes to connecting to HTTPS sites with TLS 1.2 enabled. While the site may seem fine from an SSL Labs perspective, visitors using IE11 may encounter difficulties accessing your website.

The problem is that IE11 can only handle non-prefixed domains (without www) and not those with prefixes (with www). This issue arises when TLS 1.2 is enabled in IE11, rendering the site inaccessible.

To fix this on the server-side, you'll need to configure your server settings to accommodate both prefixed and non-prefixed domain names. Here are some potential solutions:

1. Server configuration: Set up your server to respond to both www and non-www domains. This can be achieved by adding a wildcard SSL certificate or configuring your web server to redirect requests from one domain to another.

2. URL rewriting: Implement URL rewriting techniques on your server-side to redirect requests from www to non-www (or vice versa). This approach ensures that IE11 users can access your site regardless of the prefix used in their URL.

3. HTTP header manipulation: Modify your server's HTTP headers to include a `Strict-Transport-Security` directive, which enforces TLS 1.2 encryption for all connections.

It is essential to note that disabling TLS 1.2 in IE11 resolves the issue temporarily; however, this is not a sustainable solution as it compromises the security of your website. Instead, focus on configuring your server settings and implementing URL rewriting or HTTP header manipulation techniques to ensure seamless access to your HTTPS site for all users, including those using Internet Explorer 11.

By taking these steps, you can ensure that your website remains accessible and secure for visitors using IE11 and other browsers alike.

Internet explorer 11 windows 7 32 bit