Thank you for having responded to me, as these operations of changing the settings of the DVR always do only this time I made from a networked workstation connected with the DVR and the amendment of the UTP ports; FTP; UDC; HTTP setting around 80 and I saved, but at time of writing has the power went out and now start the DVR loads the software, released the video screen with cameras for a few seconds and crashes. I unplugged the network I did various tests, but I can not, a few months ago I made backup extension * .cfg setting but I think I will have to flash the DVR and do not know how.
