My Modem is a Modem/Router. But I would much rather use my existing router instead. How do I do that? (DESC)?

-My actual router is much faster then the modem router. Please help, I will choose best answer.Connect as local device or bridge - If connecting the second router via Ethernet cable, plug it into one of the LAN ports on the first router. If connecting the second router wirelessly, ensure the second router is set for client mode. Note that some home wireless routers do not support client mode; these must be connected by cable. Check your router documentation for details on its client mode configuration support.



Check / change IP address - Most home network routers use a default IP address setting. Often, these default IP addresses will not work in a two router environment. Check the second router's IP address value and reset it if necessary to work within the valid address range of the first router (and to not conflict with any other device on the network).



Disable DHCP - To avoid IP address conflicts between all of the devices on the home network, only one of your two routers should assign addresses via DHCP. All mainstream routers provide an option to disable DHCP as part of the router's configuration screens.
...then buy an additional "modem"..which does not have a Router....then plug your Router between the Modem and your PC..
Call the ISP and ask them to turn off the router. I did that and as a result, can use VPN with work.