Acer GOM Series User Manual page 24

ACER Being Communication Inc.
Select "Network/interfaces", enter "interface overview", come to WAN, then you can choose
"EDIT" to modify, as below:
In "interfaces-WAN", choose the Protocol to "DHCP client" and then "SAVE&APPLY", then
choose "Static address" in Protocol, then click "Switch protocol", as below:
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