It sounds like to me for whatever reason, the IP address on the conflicting camera is not changing and you are still conflicting. I would go into your router settings and find the MAC address of that camera and set a static IP address for it there, then unplug power from the camera and power cycle it so when it reconnects to the network the DHCP service on the router will reassign it the static IP address you chose.

Ok, so I have an OpenVPN client running on my local network and I have split and full tunnel configurations. When I am on my local network without the VPN running I can hit all my equipment fine in the Reolink iOS App, but as soon as I flip on the VPN even though I can still hit the IP address of the NVR without any issues, suddenly the Reolink App won't connect to any of my devices! Very frustrated. I had it set for split tunnel but for testing purposes I switched to full tunnel and that didn't fix anything. I am convinced the Reolink App is ignoring my VPN all together somehow. I thought all traffic would be forced through the VPN including apps, yet the app can't hit the NVR's IP address but Safari can all day long... Is there something obvious I'm missing that has caused me to pull my hair out the past few days?