Launcher HTTP 400

I'm unable to load the game at all at the moment, as I'm greeted by an SSL certificate warning promptly upon opening the launcher. If I click "Yes" to proceed, I get HTTP 400. If I click "No", I get System Error 8 (HTTPS System Error). I've tried installing the certificate to both my user store and the local machine store, no change. IE settings are all default (as per an earlier thread on this issue).

To me, it seems clear that there is a problematic page attempting to load in the launcher, and it needs to be remediated or REMOVED. Between this and the infamous 1019 issues, I'm having a very negative experience with the game I've paid good money for.

I can provide a screen shot via email to tech support if desired.

This seems to be resolved now. I restarted my home cable modem & router as well, not sure if it was just good timing or whether that helped.