I originally created my network , Fam1, and in one of my units, i connected the deco using an ethernet cable to a gaming pc. 
 

Yesterday, the network stopped working so i had to reboot all the units and Deco prompted me to create a new network.

New network is Fam2.

all deco units are now working well wirelessly. But for some reason, my "gaming" deco, which is connected via ethernet is still seen as Fam1 in my pc - with no internet connection (i connect wirelessly in Fam2, but it is slower).

1) how do i remove Fam1 from my deco unit? 

2) how do i get my ethernet cable connection to see Fam2 instead of Fam1?

thanks