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The installer didn't tell me the true difference between the two verisions, and refused my return request, I should google this earlier:(

G'day friends, I'm a home user located in Australia and got dahua CCTV system by a installer with the chinese version NVR + cameras. My NVR cannot connect to DMSS app via P2P, but works fine if connect locally by IP address. So the problem now is I cannot view the videos with external network...