Im having the same issue at work.
My works proxy is being blocked, and I get no response from any x10 sites
whilst accesing my site - using my smartphones internet connection - it works
and I can access my site from home, that works too.
its just when I come to work, I cant access any x10 hosting sites (including this persons website)
I was perfectly able to access my website before the botnet changes described on the x10hosting status page.
It sounds like this poster needs their IP address added to X10hostings allow list