Hi,
I know pretty much nothing about networking, network cameras, etc.
I have an HFW-4300s that was completely unresponsive & dropped by my NVR. When connected to my LAN, I could see the MAC address and IP, but could not access the camera via web browser, or log in with the config tool.
I was able to upgrade the camera using the config tool through port 3800 with the .bin file I found here:
http://www.dh-vision.com/main/firmware/IPC/HX5%284%29XXX/General_IPC-HX5%284%29XXX_Eng_N_Stream3_V2.420.0000.0.R.20140419/
This is the upgrade file for an English NTSC camera.
After upgrading, the camera became responsive again, and now seems to be functioning properly.
I tried to download this .bin file from a link posted earlier in this thread, but my download of that file was corrupted somehow, and the upgrade failed.
I probably would not have been able to get this camera working again without reading this thread, thank you all.