How can I change the PROLOG_FREQ?

Hi!

I have a problem with the PROLOG_FREQ parameter. I know that the PROLOG_FREQ time can be changed through the Administration Console in the configuration server options. I try to change this parameter, I change it from 12 hours to 24 hours, for instance, in the Administration Console but this change never applies to the agents.

Then I have the PROLOG_FREQ parameter to 24 hours in the Administration Console but the same parameter to 1 hour on the ocsinventory.ini of the agents, and then, the inventory is sended to the server every hour. It doesn`t happen in all agents but a large part of them.

Ocsinventory.ini

[OCS Inventory Agent]
ComProvider=ComHTTP.dll
Debug=0
Local=
NoSoftware=0
HKCU=0
NoTAG=0
IpDisc=
[HTTP]
Server=http://xx.xxx.xx.xxx/ocsinventory
SSL=0
CaBundle=cacert.pem
AuthRequired=0
User=
Pwd=
ProxyType=0
Proxy=
ProxyPort=0
ProxyAuthRequired=0
ProxyUser=
ProxyPwd=
[OCS Inventory Service]
PROLOG_FREQ=1
OLD_PROLOG_FREQ=1
TTO_WAIT=120

I have a system with 2.1.2 Server version and 2.1.1.1 agents version.

Have somebody the same problem? Can I do something to solve this issue?

Thank you!