I am replacing my main computer which is connected to router in home network and wonder if all I have to do in put new tower in place of the old and the computer and router will read each and network will be set up.
I do not know if ISPs still use this method, but my cable needs a MAC address from the original Network Adapter to work. My router clones that address to fool the system. If you have anything like that, you might want to make note of any information in the current tower, in case you ever need to reset or replace your router.
I suppose you could always call the ISP and change the MAC address if you needed to..