No, IE for browser use was one piece, initial config another, ensuring networking in line then cam config. Plugins were also not installed and should be, downloaded from cam when first connecting. On the IE front when using the Dahua NVR 4.0 FW you must ensure you connect to it (if using browser) via IE. As I mentioned in my review of the 5216, failure to do that (using Firefox, Chrome etc) will lead to functions not working correctly and I some cases features or buttons not existing. You put all of these pieces together that I mention above and that allowed resolution of Funky’s issues.
Also remember that while the NVR doesn’t need plugins directly when using IE, the cams always do when attaching via cam web GUI, if these aren’t present you won’t get live view, playback etc through cam web GUI.
Network reconfigurations and firewall rules needed next.