I know this will be getting tedious for forum regulars but I've tried to find answers in the relevant instruction manuals and in the past forum discussions and cannot see where I am going wrong.
I have just installed a Hikvision, four camera system on my office network. I am using the Hikvision NVR model: DS-7604NI-E1/4P/A firmware version 3.4.1 build 151225. When I come to playback through a dedicated monitor using the VGA port on the back of the NVR I can select all frames and cameras I like from when I setup the system. But, using iVMS-4200 I constantly get "Playback Failed". As I say, I have tried to follow the instructions in the user manual for the NVR. For example, on page 41 it tells me that before I start recording what config steps to take. These all match with the settings I entered directly into the NVR using its own monitor. So, why can I not get iVMS to playback? I'm using a Win10 machine and Firefox browser, by the way.
I know I'm a newbie and should know what I'm doing. I can work out most things but I just don't know where else to look for a solution.
Thanks for your patience.
Ben