Single data point on custom router build reliability:<p>I&#x27;ve been using IPFire&#x2F;pfSense on a little passively cooled Celeron box for a couple years.  It reliably hits the theoretical gigabit limit ~800Mb&#x2F;s and has never once failed even while running intrusion detection.  Coupled with a ~$150 wireless router-turned-access point, I have never had a single reliability issue.