If it is blocked, I'm not sure what behavior resulted in it being blocked. I suspect it's related to recent login requirements. Would connecting from two different linux virtual servers both having the same external IP address be a problem?
Your IP address has been unblocked. If it happens again, you can follow the instructions on this post to get it resolved: https://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?tid=6447