“So my question how do you reset the router so that the router goes back to its original settings and factory firmware? It seems that every time I try to do it, the firmware doesn’t change“

Resetting the firmware in the newer version is generally updated and is very much security related in it. Firmware is nothing but the software which runs with the help of router and the configuration settings too changed from the interface.

The firmware which is installed can also be changed by reloading it to the earlier version. This will reset the firmware which is not possible; you will also have to ‘re-install’ it in the computer. However from this the user can configure and can reset to the default settings by using the web-based configuration interface or it can be done by pressing the reset button on the back of the router.