The prevailing issues all point to routers, either wireless or wired. Some were cured with resetting to factory settings, some were cured by a different IP, some were cured (like mine), with a new router.
Think about the logic here. We get our internet via cable, which sends the signal to our computers through an ethernet cable. Now, I could take the router out of the equation, plug the cable from the modem into each computer and access THT with no problem. Put the old router back in the equation? Problem returns. Buy a new router, ditch the old, no more problem.
Sooooo, my guess is that at the time of the RB ads being posted on THT, a piece of code was attached to the THT URL, which then infected the router and stayed there. Anytime after that, the THT URL was blocked, tricking Chrome, Safari, Firefox, whatever, from seeing the URL and accessing the site. So the THT IT guys find the rougue code and get rid of it. My new router doesn't have that piece of code in it, so it has no problems.
Sounds like quite the hacking scheme, doesn't it? No radical message anytime you tried to access THT, no computers crashing, no issues with any other site, and a simple benign message from your server saying the site can't be found. That's my theory, if anyone has a better one...and no aliens or Twilight Zone, please...