You can change the printer NET IP to match your network by Printer Test Setting Tool: munbyn.biz/047WTool
For example, if your local network IP address is 172.18.188.245, then you need to modify the printer's IP address to 172.18.188.100, the first three positions’ digits must be the same, and the last positions' digits can be 3~253, but not the same as the local network IP address.
1、You need to connect the printer with a Windows computer(We currently only have a Windows version for the setting tool) by USB.
2、Power on the printer and load up the thermal paper.
3、Then, open the “PrinterTEST” to start the IP setting, following the instruction below .
notice: When you hear a beep from the printer, it means that the IP modification is successful.