Restart asterisk (keeper) and dnsmgr

Hello!
Periodically break down calls. The logs messages here are:

[2016/10/27 11:28:49] Restart asterisk (keeper).
[2016/10/27 11:30:19] Restart asterisk (keeper).
[2016/10/27 13:01:53] Restart asterisk (keeper).
[Oct 27 11:28:49] NOTICE[2005] dnsmgr.c: Managed DNS entries will be refreshed every 1200 seconds.
[Oct 27 11:30:20] NOTICE[3205] dnsmgr.c: Managed DNS entries will be refreshed every 1200 seconds.
[Oct 27 13:01:53] NOTICE[24079] dnsmgr.c: Managed DNS entries will be refreshed every 1200 seconds.

Software Version: 2.3.1
Hardware Version: Date 2012-11-09 FPGA 11 Hardware 00

Please help!

hi ,
i am sorry for delay because of the weekend . please add my skype : This email address is being protected from spambots. You need JavaScript enabled to view it. . i will help you check it .