Upgraded from Archer A7 to Archer C5400X, new problem possibly with NAT Loopback
My home configuration includes an Archer C5400x router and a wired Engenius EWS357AP Access Point. I use DDNS address to monitor my security cameras both locally (connected to Wireless LAN) and remotely. In my previous configuration with an Archer A7 router and the Engenius AP, I could access the cameras without any problem no matter what I was connected to (remote, LTE, router or AP). Since the upgrade to C5400X, I can still access the cameras remotely, on LTE and connected to router WiFi, When connected to WiFi on the AP, the operation fails.
To confirm, I entered the DDNS name in the browser to see if I could reach the NVR. As expected, remote, LTE and router WiFi works, but AP WiFi times out. It seems that the responses are never routed back to the AP.
I would appreciate any suggestions that can help resolve this problem.