Hitachi CPX2(M1-20WL) Service Manual page 22

CAUTION: The networks setting picture is different from this due to OS version on PC.
CPX2(M1-20WL)
Fig.4-1 Select Network Menu
Fig.4-2 Disable Wired Network
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Right click on Networks except
Right click "wired" network,
"Wireless" and select "Disable"
and disable it.
on then.