I had many desyncs with DayZ, because it sometimes uses a ton of download bandwidth. The bandwidth is often around 700 kbit/s, and sometimes even higher than 900 kbit/s.
The bandwiths usually increases drastically when I'm nearby other players.

Often the bandwidth is higher than my download bandwidth, which results in a heavy desync: I can't use any items, walk over fences, other people stay on the spot for me.

I think that this is also the cause of all the desync report, which show the same effects on the game {F29294}