if you connect dvr with internet and after some time create a problem in dvr or nvr of no display.
1) first contact to service center and repair it
2) secound contact direct company or service center for security firmware update of your dvr or nvr
3) online only P2P ( for security ) if your dvr not support p2p you can use other service
1) first contact to service center and repair it
2) secound contact direct company or service center for security firmware update of your dvr or nvr
3) online only P2P ( for security ) if your dvr not support p2p you can use other service
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