As
@sebastiantombs mentioned, most of us here know that the Dahua and Hikvisions of the world do not cater to the "consumer" market - their target audience is professional installers, so we are considered "prosumer" and we are fortunate to get our hands on these types of cameras and NVRs instead of consumer grade junk and not having to go thru professional installers to get quality gear. Now the downside is we get them at a discount and without manuals and support and thus are on our own to figure it out. And we are just fine with that! That is what Google search and this forum is for!
We are fortunate a forum like this exists to help with that. We do not exist in their world and that is their business model and they made the business decision to not compete with the Rings and Nests and Reolinks of the world and as such to do offer these cameras at box stores for consumers to purchase directly. Dahua and Hik cater to the professional installers...and would tell you to contact the vendor you got them from if you have questions or need support...
Contrast that with consumer grade units. You can call a Night Owl or Arlo or Reolink or Lorex or
Amcrest or DLink or Google Nest or Ring and speak to a representative (now whether they can help you or not is another story) and for most novice callers they provide good customer service, but they will not tell you to talk to Best Buy where you purchased it...and several of these cost the same or more as Dahua or Hikvision...
Personally I will take better quality cameras and no support and forums like this than crap cameras with customer support that I end up knowing more than the call center person I am calling...
Like I mentioned in Post #4, many of us do not use those config
tools as we like to ensure we set these up to be completely off the internet, so we set a computer to the IP range of the default camera and set it up that way so that the camera has no ability to quickly jump on the internet when connecting to a system on the net.