Need to reflash the Yun but the Ethernet does not seem to work

Hardware Arduino Yún
#1

Hi
I need to reflash my Yun but the Ethernet is not working. On my router I do not see the Yun in the DHCP list.

This is what I get when I run the YunSerialTerminal

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#2

You should post error messages and sketches using the code tags ( </> )

#3