I honestly don't know if they (Verizon) did anything. I've been trying to think of anything that changed, and the best that I've come up with is that I used to use Winpoet software on each pc, and pull a different ip address for each one. It wasn't so much to have different ip's for each pc, as that I liked being able to disconnect at any time. Anyway, not long before I noticed this problem, Verizon changed over so that I can't pull multiple ip's anymore. The guy at my local CO also said that they've been doing lots of equipment upgrades. That is the only thing I know of that changed. Unless I can find others that have this issue, I probably won't take it up with Verizon, just because of the sheer hassle of trying to explain it to them. After reading this entire thread, can you imagine what that phone call would be like, lol? It's bad enough I don't have much of a clue about all of this, I couldn't imagine trying to explain it to someone who knows even less, just to get to a Level 3 tech. And even then, they'd probably be stumped, too.
About what your ISP did, what exactly was the effect it had on you? Issues like mine, or just some other headaches?