said by aglenwri:-All of the devices in the household (desktop computer, laptop, smart phones) seem to be generating the wrong IP address to point to the wireless modem. The tech cross-referenced the IP address on my laptop to see if it was pointing to the one associated with our previous provider's modem (Rogers) but it is not. It is a seemingly random IP.
This to me tells me that you have a second "router" on your network, or basically a second DHCP server within your network. What I suspect is happening is that your devices are bouncing back and forth between your Cable connection and whatever else you have.
May I ask what "correct" IP you are getting and what is the incorrect one?