IP Address revert back to old IP

IP Address revert back to old IP

Hi everyone,
 
I am encountering a problem with Editing of IP.  When I change the IP address of a current router which I am monitoring to a new IP and saved it, it will revert back to the old IP after 1 day.  Anyone have any idea why?
 
Using OpManager Professional Edition build 7205
Thanks in advance.

 

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