Upgrading from your basic router, whether it was supplied by your ISP or not, is a huge step towards building a more resilient home network. You could get an off-the-shelf router or take the plunge ...
I'm told regularly that Double NAT is a bad thing, but what problems could I expect to face? I have a fibre optic connection to my ISP that goes into a combo router/ONT. I hooked up my pfSense router ...