I've had no issues all day.. but sometimes there are issues between your machine and all the networks between it and where the site is hosted. I find a lot of issues are due to the ISP.. (TWC, Comcast, Verizon, etc.) If they update routers, DNS servers, or other equipment, it can result in some sites working and others not.. So who knows? But I'm pretty sure the site has been reliable all day for most people..
Glad you're able to login now! Enjoy catching up...

-C