Try the commands first from a terminal wirh curl , then you can also change the auth method… Easier to troubleshoot…
So in that link posted above , from hikvision door intercom, I have attached an isapi zip file, it contains all pdf for all latest hardware
On first post there is an ISAPi zip file…
You can see the curl commands I used for hikvision door intercoms…
As latest hope, if you use hikconnect cloud , you can trace the commands from the hikconnect app, with an proxy tracer, and just simulate it with rest command in HA