What steps to take when upgrading to a new wifi router?

I am planning on buying a new Router and I want to keep the connections to the wifi devices I have around the house. What steps should I take; if any, to insure I can connect to these devices when the new router is installed?

If you have set up any assigned IP assignments using MAC addresses on your old router you will have to set them up similarly on your new one,

Take not of device IPs as needed so you may set them as static in new network

If you set same ssid on new device you will not need to reconfigure all WiFi devices

and same password !

Thanks. The problem is that I can’t log into my old router - it has shut me out. It’s old and I have not updated the firmware in a while. I will need to reset it which is why I just bought a new one.