I apologize, I was talking about the public address of the modem. Yes, I've heard that the other solution is to leave it off for a few hours. I suppose I could try that. I just wish there was a more sure way.
I don't know very much about networking, to be honest, but would getting another modem and router do the trick? I was planning on getting a dedicated router and modem anyway to replace this router/modem combo I received from Cox.