See what the DHCP scope for the Thomson modem is (likely 192.168.1.100 up to 149, but I am just guessing based on my own experience). Assuming such, set your wireless router for 192.168.1.1 with a gateway of 192.168.1.254. Use the DNS your ISP provides or something like 4.2.2.2. You only need one. It doesn't need and Internet address - your modem does that and your modem is the router/DHCP server (by your post information). ... Thinkpads_User