i have a Dahua DVR System version is 3.210.0001.0 and Build version is 2016-03-22, the problem is keep on changing Ip address to something else and the port numbers. and on PPPoE user name; HACKED, Password xxxxxx and no ip address. i have reset it to default and everything backed to normal and i have changed everything password disable wifi of the company and i wait for 2 hours and the same thing happened again i thought someone is hacking it but when i check in the logs there was my login at that current time i logged in and out and present the time i logged in. The technicians said is firmware i checked the new firmware for the current version is the same as the one on the dvr. please tip me what might be a problem and solve this problem