view cameras on different network
view cameras on different network
Creating a single large network feels more logical in this case. On your computer, you need to use the second router's IP address. You can't get the IP directly because the second router is employing NAT. Similarly, you can't reach the Camera's IP directly.
ISP gateway in bridge mode connected to TP-Link router, then switch, covering all cameras and PCs together. Forms a single network without double NAT. Full access to every camera.
Ideally, place the ISP modem in bridge mode instead of DMZ since there are fewer potential problems compared to having your own router receive a public IP address (unless CG-NAT is already in use). If that's not possible, you can set your router as the DMZ and forward all ports through it, which means you only need to manually configure port forwards on your own device. However, this still results in double-NAT and may cause issues occasionally.
It seems you've already optimized yourself before. A short while longer for that feature won't be a major problem—unless your brother had a different scenario. Now that you've adjusted your network setup, it might be a good idea to enable and configure QoS. Keep in mind that QoS performs some checks that could slightly slow down your connection. The effect will vary based on your ISP speed and the capabilities of your ax1500. *note* The ax1500 features a Tri Core processor at 1.5ghz. With your existing network, it should comfortably support 1gb with QoS active.
Is your internet service provider permit using a third-party router? If yes, you can replace the initial "modem" (which also functions as a router) with your own device, then connect your router and add your switch if necessary. As mentioned... without a half bridge, you're essentially hiding your network behind a firewall. If you must rely on your ISP's gateway, consider placing your second router in the DMZ of the first one—if possible. This might help bypass the lack of bridge support. Adding another router won't improve speed; it could balance traffic via QoS but won't change the WAN connection, which remains managed by the gateway. Ideally, keep a single router as the gateway for simplicity. Connecting multiple networks through a third-party device may exceed its capabilities and doesn't enhance performance.