Hi Michael, You can setup the Deco on AP mode, then all the devices connected to Deco and VR2800 are in the same network, and can communicate to each other. https://www.tp-link.com/us/faq-1842.html

This model doesn't support VPN setup, only supports VPN passthrough. SPSharma wrote I have WR1043ND model, is it possible to configure VPN?

Hi, Is the Internal Port 8080? What's the working mode and WAN IP of the MR6400?

Flashing red is not good. Restart or reset the camera.

NC450 is a non-PoE device. If you want to power it up via Ethernet connection to a PoE switch, you need a PoE splitter. https://static.tp-link.com/7106506857_TL-POE150S10R_IG.pdf

The http port is set to 8888? No need to change the port, access IP:8080, that will give you the live view directly. If that works, it could be the browser. Try other browsers. Try other computer...