We are have some DVR Server just use save image camera,view camera we use Client connect with server. Most of them are DVR Server error "Unable to write to SetPara\System.ini" after a about 4-5 day. I try Restar Server it run return ok. Some camera of us aslo disconnect when DVR Server is error. Plz help me!

Hi dungx,  The error message "Unable to write to SetPara\System.ini" usually happen when the user ID which log in the Windows OS has no permission to modify the directory / drive where software installed.. I suggest you to try to enable & log in using "Administrator", not other ID(Even the other ID has admin permission).  Then lower down the UAC to the lowest level, and better to setup the security for the drive to be "full control" for "everyone"..