I have known this for a while but thought it worth mentioning. CenturyLink is my ISP provider (I know, I have your sympathies). While playing, my character would stop responding to input - so must be another ZOS problem, right? Nope. Looked at my modem and saw I lost internet connection. This has happened on a fairly frequent basis in the last couple weeks.
Long story short, not all disconnects are ZOS related. Check YOUR connection first.