The JIRA version we are using is 6.1.6 and it is installed on a Windows 2008 R2 server.
When going to the dashboard using Internet Explorer we get the following message: "This page can't be displayed. Turn on TLS 1.0, TLS 1.1, and TLS 1.2 in Advanced settings and try connecting to site again. If this error persists, contact your site administrator." All 3 TLS options are already on.
The site works fine in both Chrome and Firefox.
If there are any log files or other information I can provide which will help just let me know.