i'm using a Windows 10 PC and was also not getting encryption. I linked to the site using a bookmarked URL with the address of: http://www.texaschlforum.com/.
I edited my saved bookmark to: https://www.texaschlforum.com/ and now i get the encrypted secure page. So the site is not automaticly flipping to https but will give you a secure page if you use https in your link. That may be the issue on your ipad.