Even though DE has been working around the clock to resolve connection issues, some of you may still have a problem. The below link is a Twitter link, where they keep everyone updated as well as their forum. I do not know if you can access the below link if you do not have or are not subscribed to Twitter. Give it a try anyway. If not, I included the two latest tweets straight from their Twitter feed.
Seeing some reports of login issues. We’re on full investigation mode, hang tight!
Seeing improvements from this mornings login issues and continuing to monitor! More information in our forums: https://forums.warframe.com/index.php?/topic/216117-41614-connectivity-issues/page-7#entry2514276 …