Can you please tell me the name of the device you are using to convert BNC->> Ethernet cat cable???? I have been looking for something like this for months.
My issue was on a EFBrowser tool, the NVR we have does not allow a regular browser to access it without a special program which is not obsolete...EFBrowser is the product we use and it is crappy.
Yep, that is the stupid error message! Look at your IP addressing under DHCP on your router! Make sure you have a lot of them. I didn't and had to add in more which fixed the issue.