Search:

Again, the 10-15 second lag spikes are the server's cause (as I described above). However the fact that you (as you said earlier) have like 400ms ping is not the server's cause. I live in the same...

Almost every 15 mins there is a 12 seconds lag spike. This is due to a bug in Bukkit, sadly we cannot fix this. Just gotta wait till the guys @ bukkit fix it.