I have a QWest DSL modem (Q1000)and a DLink router (DIR-655) that had the same IP address (192.168.0.1). My network works fine as I have my DLink plugged into a Ooma VOIP box, then the Ooma box connects to the modem.
Everything works fine that way, but I wanted to plug my DLink directly into the modem, bypassing the Ooma device. My thinking is I might get better speed by doing this.
So to eliminate IP confilct, I changed my DLink router to 192.168.0.2 and changed the appropriate NIC gateway setting and DNS setting. No problems.
But when I plug the Dlink into a port on the Qwest modem, I get nothing. Dlink does not "see" the modem. I've tried DHCP on and off in the modem with no difference.
Connected through Marvell Yukon 88E8053 PCI-E Gigabit Ethernet Controller
IP Address 192.168.0.110
Subnet mask 255.255.255.0
Gateway server 192.168.0.2
Preferred DNS server 192.168.0.2