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Try IE11 with Compatibility Mode set as below using your camera's IP. You might need to disable Protected Mode for Local Intranet too. This eliminated the error and saves the file for me. Not sure about FF but Chrome works too provided you have the correct plugin installed. Regarding playback...

In your camera settings, under Configuration>Smart Event>Face Detection check Notify Surveillance Center is ticked. For testing it's best to look straight at the camera from less than a couple meters away for the alert to trigger reliably.

Try this: Click the cog (image below). Check your Arming Schedule is set to all-day every-day. Then under Linkage Action, check Audible Warning to make it easier to confirm it's working. Next check Menu>Configuration>Exceptions. Make sure Enable Event Hint is ticked. Click the cog next to Event...

I've managed to get face detection working but the algorithm is far from accurate. Unless the face is directly looking at the camera and the head angled dead center, it doesn't easily trigger. I've only done cursory testing with the camera but plan to test with my NVR in the next couple of days...

A good place to start is the Network Camera Security Guide from Hikvision.

Try this: Click Account Management>Add. Create a user with type Administrator, set the User Name to: admin and use the same password as the DVR's admin account. Once you have created the admin account, click the account drop-down at the top right and select Switch User. iVMS will ask you to...

“I've also hooked up to a screen and found today that I can see a display, no cameras but a display with menu's when I try to go into "Menu" i get prompted for a username and password, I can type a password but can't type in the user name box, it has a drop down menu to select a username, there...

Please send a Wireshark capture. Expand the initial ARP broadcast from the DVR.

Set the IP to 192.168.0.128 on your laptop adapter and amend script line 171 to the same. I see a few reports of success with that IP. Keep me posted.

Are you power cycling the DVR when the script waits on 'Serving xxxxx-byte digicap.dav ...'? It won't proceed unless you do. Failing that: I can't say when, but Hikvision changed the default IPs in the firmware. I had to set my TFTPServ IP to 192.168.1.128 for this reason. Please try this only...

Just to clarify, you haven't received the magic handshake part? Stuck at the line above?

Few long shots to try: 1. Configure the laptop adapter to IP 4 only, nothing else ticked. 2. Don't open the cmd prompt as admin, it works for me without elevated privileges. Try the script again. If it fails again, download this version firmware. Copy the digicap.dav to the Python folder and...

It's possible the path isn't correctly setup in your environment variables. Any chance you have multiple versions of Python loaded? I'm on Win10 so attachments may look a bit different. Instructions below are for Win7: Select “Computer” from the Start menu Choose “System Properties” from the...

Additionally, please post a screen capture of the response to: Open a cmd prompt. Type c:\>python.exe Type (at the >>): >> import socket

Post a capture of the files in that folder:

My guess would be firewall: Open the CMD prompt as Admin and try again. Additionally, disable the Windows firewall entirely. You can turn it back on after.

Be aware I haven't tired this on a DVR before. There may be a risk of bricking the device 'again' or the process simply failing. If your ok with the risk then proceed. Connect a Ethernet cable from your laptop's Ethernet port into the DVR's Ethernet port (not the PoE ports). Configure your...

Firmware for the DS-7204/7208HUHI-K1 can be found here. This firmware lists your model as compatible, so let's try it first. Copy the digicap.dav file to the folder you extracted Scott's script to.

Download Scott's tool here. Unzip it to C:\tftpPy or similar. It would help if you have a code editor like VSCode or PyCharm Community edition to edit the script. Let me know when you're setup.

If you type python from the cmd prompt do you get the following? If so you are good to go. Before proceeding, do you have the firmware file downloaded the DVR was last working with? Might be best to load the firmware version we know works first.