Ah, it changes its IP! That means I have to tell the router a different default gateway, which is probably why I couldn't get a connection.
But I'm correct about bridge mode, right? It just shuts down DHCP and wifi on the 4141 and turns it into a plain cable modem with one ethernet port that conects to the WAN port on the router?
You are correct about the bridge. It just turns the 4141 into a modem.
Does this mean you have to change the subnet mask from 255.255.255.0 to 255.255.0.0?
After you connect to the LAN port of your router, your router will configure itself. You don't have to enter an IP address or subnet.
Doesn't work. Connection is "limited", meaning no internet.
