Hi there, I am looking for guidance in extending my wifi coverage. I am looking to get fast wifi in my granny flat, it's less than 20 meters to the flat but I cannot get good wiffi from the house that far away. 

What I am asking for is advice on a mesh system and particularly if I connect one of the mesh system in the flat with a Cat6 cable running in from another one or router in the house, will I get speed from the one in the house to the flat at the same or similar rate. I was thinking of the AX3000 

Thanks. Hugh