We check this website, now resnexus.com is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is resnexus Down Right Now? - NO! resnexus is up!
If you have problem with access to site resnexus, and domain resnexus.com is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).