Nort sure what the problem is. We have a valid SSL certificate. I renew it ever 3 months. not sure what the precise TLS type it is.
Here's some info for that issue with the edge browser:
http://www.surfacetablethelp.com/201...ge-brower.html
you need if find those checkboxes to accept all the versions of TLS.
In the pop-up dialog box, go to the Advanced tab, under the Security heading, locate the “Use SSL 3.0” and check its box.
* Add the checkmark with Use TLS 1.0, Use TLS 1.1, and Use TLS 1.2 boxes. Then click Apply > OK button.