For connecting an ATEM to any network connected control unit (console, PC/Mac) you need a minimum of network knowledge.There are a lot of posts about this.
For the first trial, use a PC with a wired ethernet connection. Go to network settings. Set to static IP, e.g 192.168.1.55 (the first two numbers are standard for private networks, the third number is mostly 0 or 1. the fourth numer is the address inside your small network. In this example number 55 (0, 1 and 255 are reserved). In this example, your network can have 253 different devices.
Set subnet to 255.255.255.0. This means, all addresses of the fourth number are local - all other are outside your network. This will be important, when using a router. In this case, you don‘t need a value for
In this first trial, you don‘t need any router. Connect the computer directly to ATEM with a cable. Connect also USB for setup the ATEM. Run setup and set ATEM ip to e.g. 192.168.1.240 (but not the same like the computer has !). Subnet mask is also 255.255.255.0.
The ATEM should be controlled by PC now...
Most people want to use the control PC alt the same time as streaming device. So it must be connected to internet by a router.
In this case, you have to modify ATEM and PC ip-settings matching to the router. But for this, you must know the router settings.
This is the second trial and I‘ll give more information after successful finishing step 1.... When your PC was working inside a network before this trial, switch back to the settings before
P.S. the gateway address is the adress of your router. In most environments, the PCs are connected by DHCP. That means the router gives an address to the PC. The general network setup depends on your use case !
You can view the IP setting at a PC very fast using a dos prompt and typing the command „ipconfig /all“