So I have an Arris TM822 modem and its an optimum device. I tried typing in 192.168.0.1 in the browser but nothing comes up. When I type 192.168.1.1 it takes me to the optimum.net page where I just get options on my network, how many devices are connected, etc. How do I get on the Arris website to change my IP address that way. I tried contacting optimum but they said I have a DHCP dynamic IP and it can't be changed. Also, when I unplug my ethernet cable from the router and plug it into the modem and I look up my IP on IPchicken.com it comes out different. Idk if that's a normal thing.