I've got a older 16 channel NVR and 12 rebranded Hikvision cameras. All of it was bought from LTS Security over 10 years ago. We bought a copy of Blue Iris and started changing all of the cams over to that but I got 6 of them that I can no longer enter. I use my name and P/W but it says that one or the other is wrong. Don't understand why some were ok but others got changed some how. Has anyone got any ideas of what I can try, have already tried to use the Hikvision P/W reset tool.