Anyway, I see now 2 problems:
1) High ping(display in client), cause problems with route to new DC or packets loss, I monitor latency statistic for players in pick online time, and see that: 65% players have latency
2) In some times have up server delay(on x10 to 1 sec, Fun, x100 - 4-6 sec.), this occurs briefly in 1 time 30 minutes (average), we are working to resolve this issue at their level and do not deny its existence(already optimize mysql/core settings, but not helps, tomorrow will be move some servers on new hardware).