Wow, what an ordeal! As above, I had the "Internet Broken" message after clicking the validation link. I tried all of the above suggestions, clearing cache & cookies, different browsers, copying and pasting the link instead of just clicking on it, nothing worked. I even thought OK, I'll create a new account so I can get on here and ask for help. Guess what, the new acct activation link gave me the same message, "Internet Broken"! AAAARRRRRRRRRRRRRRGGGGGGGGGGHHHHHHHHHH!
So, i'm not sure if this is coincidence or just a freak of nature, but as a straw clutching exercise, I copied the two == after the link into the browser (along with the link of course) and it worked!!!
Hope this helps someone, i've been friggin around with this for ages.