Yeah, I don't know. The only computers I have upstairs are my Macs and my kids are playing Wow on their PCs, so there is no way for me to kick them off in order to view the site on their computer. It is happening on both of my Macs though on both firefox and Safari (I don't have IE on my Macs).
Here's what I found here:
https://vborg.vbsupport.ru/showthrea...light=OPM_Deny
https://vborg.vbsupport.ru/showthrea...&highlight=opm
edit to add: I'm not using a proxy, so I'm not sure why this is coming up for me.