Ip filters in not working under agent configuration.

Hi, 

I have an agent configuration, which i like to disable all monitoring to specific network, for ex' 192.168.0.0/24 

I have created the following filter under agent configuration: 

-,192.168.0.0/24,*

But still, the policy is blocking the file from copy. 

I'm using Symantec DLP version 12.5

How can i stop monitoring for specific network / IP ?