I started down this road in 2018. Bought some cheep cloud cams and had problems with them. Found this site while looking for answers to those problems and after about 2 days loaded the free trial of BI and then bought it the next day. Realize I was still using those cloud cams (LaView) in BI but then I read the
Cliff Notes and checked out the
WIKI (helped with terminology), looked at lots of threads here and ended up buying Dahua cams from
@EMPIRETECANDY, like may others here.
BI was a little hard at first. But there are many videos that show you how to begin set up and other advanced options. Also, the help here is fantastic.
I have the same router as you. I do not have my BI computer DIRECTLY plugged into the router. But rather have it plugged into a switch that is plugged into the router. See diagram for dual NIC and photo below. The dual NIC option keeps the cams isolated from the internet.
View attachment 83216
View attachment 83217
So in the photo above, you can see the router bottom left. Switch 3 (SW3) on the top of the rack is connected to the ISP supplied modem/router via the green cable. So anything connected to that switch is capable of connecting to the internet.
Switches 1 and 2 (SW1 and SW2) are POE switches that have cams connected to them along with the two NIC's, one in the BI PC and one in my office PC. This allows me to directly access any cam from either the BI PC or my office PC.
It is smart to start with one good varifocal cam. That is what I did. It will help you to learn more about IP cams, what they can and cannot accomplish, and help you define your system and make your plan. My plan has evolved over the years and is nothing like my first plan. I now have 23 installed cams and three others waiting for install. While it was started for security purposes, it has become a hobby (obsession?) for me.
If you need help on the terminology, just ask.