You absolutely must secure your home router and you probably can't

Every router I’ve had from various ISPs have the option to operate in a bridge mode.

The most excellent choice. For those who don’t know PFSense, this is a Unix router OS that will run on your old computers (though you may need to add a network card) which will turn your old PC into a routing powerhouse. It’s secure, stable, extensible, and free. And since it runs on a PC it’s going to have tons more horsepower than any home router. You don’t need to know anything about Unix either. It’s simple to setup and you manage it from your web browser.

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