Please also beware that the must not be any other devices with the same IP in the subnet. If an router is used as network switch, these often also have the 192.168.1.1.
Did you check in ctrlX WORKS if ctrlX CORE is reachable and which IP is given to the device?
Is the network port of you PC set to the correct subnet address (in your described case 169.168.1.x)?
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