Vendor Website: https://www.epson.com.au/pos/
Default IP: DHCP
Utility software: https://support.epson.net/setupnavi/?PINF=swlist&OSC=WS&LG2=EN&MKN=TM-T82II
Username: Epson
Password: Epson (After 2019 they changed this to be the printers serial number as the password.)
Download the Epson net config utility:
https://download.epson-biz.com/modules/pos/index.php?page=soft&pcat=3&scat=43
This is a utility provided by Epson for their printers, it scans the network for any Epson printer even if it'is not on the correct IP subnet, you can then login to the printer and change the configuration. After scanning any printers found on the network can be seen in this list.
Double clicking on a printer opens a connection to the printer and its configuration:
From here you can select the TCP/IP Config page on the right and configure the IP settings of the printer.
By default this is Automatic, set it to Manual to set a static IP. Once done click transmit and the printer will load the new config and do a reboot.
Alternatively depending on how old the printer is you can login through a browser using the IP address:
Username: Epson
Password: Epson (After 2019 they changed this to be the printers serial number as the password)
From here you can configure the IP address and change the device from DHCP to Static as well. Set Acquiring the IP Address to Manual:
Leave the rest of the settings and configure the addresses to your desired config. Press send the printer will reboot and change config.