I want to connect Asus router (secondary router) to a BT Smart Hub 2. The Asus currently has ip address of 192.168.1.1 and I want to retain this as it has devices feeding off it with fixed ip addresses. Is there a way to change the ip address of the Primary router to do this? I will disable WiFi on the Primary router and use the access from the secondary one. I may want to use the ethernet ports on the secondary router though.