Also the cameras are on a separate LAN so likely can't get to internet regardless. They are on one of 2 NIC interfaces
Definately important info there, I cant say i've followed any of your other threads where this kind of info may have been stated
I'm going to assume that this PC is a BI PC because that is a common setup that people use for BI and keeing cameras on a isolated network
The IP address I previously sent on the Dahua was only for testing. I corrected it to my local IP of 192.168.1.100. This is the server IP and updates the time on the Dahua.
The Reolink has a drop-down for "custom" and I enter the 192.168.1.100 and the update fails to work. Curious if anyone has had any luck as it seems like it should work. See attached
A Question that i have is:
Is the ip address of 192.168.1.100 the IP address of the NIC that sits in the subnet your cameras reside in? Or is this the other NIC that you would access the PC on from your LAN where your other devices reside? If 192.168.1.100 is the LAN NIC of the PC then I'm not sure if that would work. I'm not a Windows guy so someone may be able to correct me if im wrong, but im not sure that a Windows PC will automatially route between interfaces by default. If thats the case then it wouldnt work. In other words, make sure that you are putting the IP address assigned to the NIC that resides in your 'camera' subnet (if you haven't already).
I would be sure that you are actually successfully polling your PC with your Dahua camera (if not already done) by setting the time wrong manually on the camera. Then changing the config to use the PC as NTP server and wait for it to correct itself. This test will prove that your NTP server is listening and accessable on UDP port 123. If that fails then you need to figure out why with that device first (since we all know here from experience that this does work with Dahua cams).
If it does work, with that knowledge your Reolink
should also work. If not then perhaps you have come across a bug in their firmware.
As a belt and braces approach you could install wireshark on the PC and capture traffic on your 'camera' NIC to see if the Reolink NTP traffic is hitting the NIC.