I wanted to know if it's possible to change the subnets on the Home Hub 5 for static IP's. I currently only have the option of 255.255.255.248 & 255.255.255.240. I'd like to change this to 255.255.255.252.
What are you actually wanting to do, you are mixing several terms. Do you want to change subnets, do you want static LAN IP addresses or do you want to change the subnet mask in order to have more than one subnet.