DVR no display problem when i connect with internet

When you Connect your dvr with internet and after sometime no display

Internet proble
1) change your Admin password and delete 888888, 666666, account, use password strong password
 " Surat$567@ "   ( capital "S", small "urat" symbol "$" and number "567" )
2) Close your Telnet Port ( telnet port Number 23),
3) static ip change automaetic  10. 0. 0. 0
4) P2P not work check your serial number  0000000000000
5) dvr not online in ddns check router gateway ( 192.168.0.1 0r 192.168.1.1), and set Unique name in ddns, same name not work in ddns 
6) No displayv after online dvr damage your hardware chip by virus
7) Hacker can send virus in particular ip range (123.1.1.5 to 123.1.1.100 sample) if your dvr in this range somthing happen in your dvr,  like no display, admin password hack, access by other location, ip change, 


Dynamic-iTech
Mo.9662118956

DVR Restart problem

DVR Restart problem

Types of restart problem in DVR
1) when switch on DVR display only LOGO and after sometime restart
2) Working DVR but after sometime restart in 30 minit
3) DVR Restart in 5 minit , saving
4) DVR Restart in one Day
5) DVR Restart after Firmware By company


Dynamic-iTech
Mo. 0662118956

CCTV Camera color problem

CCTV camera color problem

Types of color problem in Camera, Analog Camera and HD camera
1) blinking color green and pink in front of Light
2) Blue lining vision
3) Black and half picture
4) Pink visuon on day
5) dot vision
6) Black and white vision in color camera in day



Dynamic-iTech
Mo. 9662118956

DVR channel problem

security surveillance system

DVR channel problem is hardware problem not solve by Firmware

Types of Channel problem
1) channel mixing
2) black vision
3) color problem
4) any one channel not work
5) lining vision
6) contrast/brightness problem

Dynamic-iTech
Mo. 9662118956

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