If it is DHCP, set it to static (or vice versa)
Printer Setup > Connection Setup > Network Setup > TCP/IP setup
If static > IPv4 > Ipv4 Address and give it good unused IP address and the correct subnet/gateway
If DHCP > DHCP > ON > OK
If that doesn't work get yourself a USB cable and wire it direct via USB to the PC.
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for posts that resolve your issues. Your feedback counts!Joe Arseneau