Yes, just got mine fixed.
As mentioned elsewhere here - the date and time are critical for this to be successful. I thought I had the date and time correct, but I was set for June, not July as the month - DUH! Also, I had it set for London English - not American English - don't know if that made a difference or not - I suspect not.

Setting the 770 to the correct month (July now) fixed my HTTPS problems. I can now connect to the two HTTPS sites I mentioned in another post.
THANKS !