I have not assigned anything.Is the IP address you assigned within your network? Are you able to ping that address from another computer on your network?
Router is 192.168.1.102What is the IP address of your router and your PC
We need both IP address and subnet mask please
That's the console display picture from the manual...Something has assigned 10.238.15.194 to TrueNAS.
Known good cable and port. Lights at both ends that flicker.This is bordering on bizarre...
You have a cable plugged into your switch and a port on the modem - are there lights on at each end adjacent to the port?