Windows 10: Changing IP address of Gateway Max Modem

I have a Telstra Smart Modem and a Gateway Max modem. I want to use the Gateway as a wi-if extender but both have the same IP address so I cannot change the Gateway to Bridge mode I believe that is what I must do. How can I access the Gateway to change that and the IP address and am uncertain about how to do that. Be gentle I am a 78yr old trying to catch up. Thank you.

:)

 

Recover accidentally changed router/modem ip?

it should tell you a gateway. thats your modem/router ip address

 

Router & Modem WAN IP address questions

When you say "that router" not running DHCP, are you meaning my Router or theirs at the HE?

The initial problem was, that address was not passed along to the Router, not until I rebooted the Modem. I don't/didn't want to change the address, I wanted the Router to get it again preferably w/o rebooting the Modem.

If I did nothing, would the Router eventually get recognized again? And how long?
Also, in that state, I could not access the Modem.

 

Router & Modem WAN IP address questions

Why? It does no harm and in fact, often restores performance as it forces the ISP servers to refresh all the settings on their side too - a good thing.

True - well, kinda sorta. "Renew" does not automatically imply a "new" (IE, "different") IP address. The fact is, it is almost certain the same addresses from the ISP will be reassigned back to the same MAC address. ISPs typically use a semi-static type assignment system. Their network will "dynamically" assign a "new" IP when you first subscribe to their service, but then that IP becomes tied to the MAC address of the gateway device (typically the modem). So even if you disconnect for a week or even longer, when you connect again, it is not uncommon for the same IP address to be assigned to your modem again.

In fact, I recently purchased a new modem which of course, required me to contact my ISP to get it authenticated on their network. It was assigned the same IP address as my old modem - they just linked it to the new MAC address of the new modem.

About the only way I can get a different IP assignment from my ISP is if hackers and bad guys have spoofed my IP and suddenly my IP gets blacklisted because of the bad guys activities. But this is a pain because I would almost have to prove my innocence (that I was not the bad guy). Proving innocence if often much harder than proving guilt.

Of course that was my ISP (Cox). Others may do it differently.