said by mk1_416 :Rogers can ping your modem when ever they want as long as they have a signal going to it. The techs are usually clueless and some didn't even know it was possible for a customer to lookup modem stats from their end. When I pointed out that DHCP was being refused from their end I only heard crickets until I got transfered to another tech.
Yeap well said, I go further and say to put your gateway in bridge mode and then into your own router. Using the telecoms router as your main gateway is very unsecured and is putting your network at risk.