Went into Howling Stones for the first time on this server and almost immediately got the same desync issue, badly enough that I had to use the task manager to get out of it. In doing so, however, I noticed that three zones (presumably the last three I'd been to), were taking up roughly 30% of the CPU, and a rather fantastic amount of raw memory considering I was the only one on the entire server (my zones are set to linger for thirty minutes or so, so mob corpses don't poof).
Rebooted the server, logged back in, and looked at the task manager again. This is from about twenty seconds having logged into the zone:
My understanding is that EQemu really doesn't need that many resources unless you've got a pretty heavy server load. Is there any reason why it would be hogging this much on a machine that's only a few months old, or am I mistaken? This doesn't really explain why the issues only crop up in certain zones (and instantly at that, with the random exception of Dreadlands), but my CPU load zipped up to 100% several times while I was looking at this. If it's doing that, little wonder my client is getting choked out.