I kept badgering Spectrum support on FB Messenger. Somehow the MAC address registered to my account did not match my modem's. So it appeared that the Rokus were connected to another network. Since MAC addresses are hardcoded into hardware and it's impossible for me to change it, I'm going to assume something went wonky on Spectrum's side and my registered MAC address was either deleted or changed.
The system normally takes a few days to normalize and update your account to reflect the new install properly.
With the Application as you see, it needs to recognize that the modem you are attached to is your dedicated home device, without that, some of the offering is unavailable.
Log into your Spectrum account, and check on your internet devices by going to the internet tab, and you should see the modem you have installed at your home, and confirm the MAC address is right. If you don't see a device listed, then it isn't updated yet and the system is still in need of updates.
This is all done automatically, so unless you change the modem again, it should update fairly soon after install, i haven't ever seen them take more than 2-3 days after installation, but it's not unheard of to not work same day.
You can always call the customer support number, but again, they can't force the device on however they can check balancing on your account and ensuring everything is properly set up for the servcies to work properly.