Static IP address.
A TCP voltmeter can use a dynamic or static IP address. The dynamic IP address is obtained from the DHCP server, the static address can be configure in Network Settings manually.
Static address setting :
1. uncheck checkbox Enable DHCP
2. enter a new static address in the text box IP address
3. press the Save config button
The new IP address must be within the allowed IP addresses. If the TCP voltmeter stops working due to incorrect IP address setting or other parameters, so it is possible to reset the board to original setting. The procedure is here.