NVR doesn't work with extender externally, don't know where to look to troubleshoot
I'm trying to switch my Surveillance NVR from a wired connection through a D-Link Powerline AV2 2000 to now be wired into a TP-Link AC1200 WiFi Extender RE315. On the powerline kit, I had no issues connecting to the NVR either within network or externally. However now with the Extender, I can only get a connection while within the same network. Switching my phone from wifi to phone service I am unable to get a connection. Hooking up my laptop to the ethernet cable shows the extender does provide a valid connection to the internet. So I figured it was a port forwarding issue, but I opened all possible ports that the sw uses. NVR software shows it is configured for only 85 and 9000, but manufacturer (Swann) says all of the below are possible, so I opened all of them to the NVR client. The forwarding doesn't help anything. I don't know what else to try or where to look. I looked in the System Log hoping it would show some kind of rejection message when attempting to open the cameras, but nothing ever comes up.
@jzchen Neither my AX5400 router configuration nor the RE315 extender configuration have configs that match the what your link showed. Looking through the network maps on both configurations, it looks like it is using the actual MAC of the NVR, not virtual. The MAC matches what the NVR software says it is. I'm unable to find the Operation Mode (Universal, WDS, Proxy) in the RE315 settings. The only similar thing I saw was a mode switch for Range Extender Mode or Access Point mode. I changed it to Access Point mode to see if it would affect anything, it ended up breaking the thing, showing as offline without an IP and I had to factory reset it. Here's the settings that match "MAC" from my router.
