Ya this latency in raids is a pain. I've been desperately attempting to clear T13. And every time I get a decent experienced group, we get all the way to ahk morns, then a healer, or a tank starts having all kinds of connection issues. It's so frustrating. what ever it is, may be ISP related. I haven't had very many issues, intermittent issues with actions not firing. But other people outright are getting disconnected, or rubberbanding like crazy. I'm not sure why it's effecting some people and not all. It's why I think ISP is a issue, and also sense SE did mention some ISP maintenance a few days ago that was going on.