So far I have had the best luck with powering everything off (modem and router) start by plugging in the cable modem and give it 2-5 minutes to boot up and do its thing. After that, boot up the Almond+ and give it a few minutes. I usually try and watch the wan section to make sure it has a public IP and just to see if it bounces around on addresses or not. If that doesn't help, I would try doing the opposite (boot the almond+ first after everything is powered off for a few minutes, and cable modem after that). One other thing is make sure the setting for DOCSIS 3 modems is checked. I'm unsure if that actually does anything or not, but I always try to make sure that is checked.