I doubt that you'll need to "fix"it. AFAIK this is the consequence of not using IPv6 in your network setup. And before you ask, I guess that the vast majority of all other TC users will share the same "fate". The "new world" of IPv6 will come to all of us (at some future point in time). But it depends on your ISP, your broadband router etc. to all play along.
Therefore I'd suggest you just ignore those warnings for the time being.