I'm having this exact same problem. My bank upgraded their website earlier this month. The first time I went to log in I got the same error message as OP. This occurred across numerous browsers and on different computers. From a pc, same thing using Internet Explorer, Firefox or Chrome. Same thing on my macbook pro using safari (mavericks). Came back another day and finally got it working on the mac after clearing cache, clear all website data, allowing tracking, AND having to reset my comcast internet connection. I got on somehow and I saw that the website had a completely new design and customer interface. One week later....same problem! Its all back. on multiple computers and different browsers. I can't remember all the steps I went through before. And it was enormously a pain because it basically re-set every freaking website I go to. I call my bank. Pretty much they are idiots and refuse to respond in any fashion when I say it all started this month when you guys changed your website. They just try and talk me through clearing cache etc. In the end, they can't help me fix it and blame Comcast and tell me to call them. I call Comcast. They talk me through all the same freaking steps, clear cache, cookies, etc. and they can't fix it and blame the bank and tell me to call the bank. ARGH! Can anyone help with this?