I was having this problem and thought I had to create another post. In fact what was really weird was I was always logged in from my work laptop even after disconnecting each day. I thought at work it would be more secure but no.
Here's what I did. I allowed both nationalsforum.net and wnff.net/index in the privacy sites area.
Then I went to Trusted Sites. I unclicked the box that said must have https to add. Added both nationalsforum.net and wnff.net/index to those. RECHECKED THE BOX that said MUST HAVE HTTPS IN THE LINK. CLOSE OUT.
That's how I got it to work. I don't know if it will work if I reboot but it should.
