Robert got a new modem and now he has a random disconnect problem. He then can't get on the internet. Leo says that it could be that Robert is having issues with the router in the modem. He should go into the settings and make sure to turn off the router option. It could be running into competing routers. Leo says that the ISP could be changing the settings remotely as well. That's why Leo advises buying his own DOCSIS III modem. Another thing to do is check the network settings to see if his computer is configured to act as a router. If so, that would point to malware.