5) Go ahead and log back into the router if you have "Restore Defaults", otherwise just click on "My Network" at the top of the screen. Once you are there, click on "Network Connections" at the menu on the left.
6) You should now see a list of interfaces that exist in the router. To see them all, click on the "Advanced" button below that list.
7) Now you will need to do this very important step. you will need to release your MI424-WR's IP from the ONT or you will NOT be able to have your new router DHCP an IP for itself!. To do this, click on the "Broadband Connection (Coax)" from the connection list. Then click on the "Settings" button at the bottom. You will now see a bunch of settings for this interface. Make sure the "Privacy" option is enabled (if you have reset your MI424-WR to defaults earlier, it maybe disabled. Not having this setting enabled will cause the connection to the ONT to fail!). You can click on the "Release" button if an IP address is currently assigned to the MI424-WR. Click the "Release" button and immediately change the "Internet Protocol" option to "No IP Address" (default setting is "Obtain an IP Address Automatically"). Click on "Apply" afterwards, then "Yes" (if there's a confirmation message), then "Apply" again.
8) Now you will need to turn the MI424-WR into a bridge. In the connection list, click on "Network (Home/Office)", then click on the "Settings" button. You will see a list of interfaces under "Bridge". Check the box next to the "Broadband Connection (Coax)", then check the box under the STP column. Click on "Apply" afterwards, then "Yew" (if there's a confirmation message), then "Apply" again.