Anyone having trouble logging into AKO/HRC/Enterprise from home on the weekends?

I have never been able to get it to work with internet explorer. However with some playing Firefox works well, and Chrome worked right away. With Chrome, nothing special had to be installed, however the CAC needs to be plugged in prior to opening Chrome. Firefox needed add in security keys or some such, but the CAC could be inserted whenever. IE just sucks all around.