So I found that my traffic patterns killed consumer grade devices. From the research that I have done (and the internet is never wrong) they are not designed for anywhere close to 100% duty cycle. So once you install something more powerful (also uses more resources) and then start hammering it with connections they burn out due to running hotter than they should long term. So after running highly rated consumer hardware and replacing it every 1-1.5yrs I moved to pfSense and recently a Ubiquiti USG.This puzzled me too: surely the router of choice for most knowledgeable home users is the well-vetted consumer router reflashed with third party firmware. OpenWRT now has the CeroWRT bufferbloat fixes backported and if I wasn't treating edge routing and firewalling as a subfeature set of a more elaborate network appliance I'd still be doing it too.