That information was very useful. I used my favourite Web Search Engine and i
found the following threat:
http://askubuntu.com/questions/63059/why-is-my-ethernet-connection-connecting-and-disconnecting-repeatedly
All you got to do to solve it is ignoring IPv6 and killing any dnsmasq
process. You can do this by doing the following:
Right click on NetworkManager chose "Edit Connections..." double click on the
Wired connection 1 go to the "IPv6 Settings" Tap and chose "Ignore" where it
says Method.
Then run "sudo killall dnsmasq" on terminal and thats it.
I may field a bug report for Brigantia. Thank you all.