system time reset

I have openvox gsm gateway
Model Name: VS-GGU-E2M0400
Software Version: 2.2.0
Hardware Version: Date 2012-11-09 FPGA 11 Hardware 00

in my time settings Auto-Sync from NTP: is OFF
i do sync from client, but after some time, the time settings are reset to default time
May you help me save time settings whithout stp server?

And where can i see firmware changelog?

Hi sir,

When you use sync from client, you need do this everytime after system reboot.
Here is the link of changlog:
www.openvox.cn/pub/firmwares/GSM%20Gateway/ChangeLog
For more questions, you can contact me by email or skype.

best regards,
email: This email address is being protected from spambots. You need JavaScript enabled to view it.
skype: linda.li258