Hi
@ian1975
When you say that you only get audio on 1 or 2 cameras in Hik-Connect, do you mean when you are split-screening all 8 cameras or are you live viewing each camera individually and only 2 cameras will give you audio?
In regards to browser live view audio, I don't believe there is any way to have the audio on all the time so you will have to keep turning it on when you want to hear it (the reality is with all the background noise out there you won't want the audio on all the time as it will just start to sound like white noise).
Also, as far as I am aware there is no volume control in the Hik-Connect app. The audio is either on or off.