I'm also having this issue today. I log in and it brings me to a page saying to click the "continue to dvcmember.com" button to move forward and it simply brings me back to the sign on page. I didn't have anything extrememely important to do today, I just wanted to look at my reservation details so it's not a huge deal, but I am curious if anyone has received confirmation from
DVC that the site is malfunctioning.