I also have XfinityWifi. The box that provides it is extremely buggy. I recommend setting it to "Bridge mode" (which turns it into a dumb modem) and then using

I also have XfinityWifi. The box that provides it is extremely buggy. I recommend setting it to "Bridge mode" (which turns it into a dumb modem) and then using OpenWRT in a normal, router configuration. You get a really good speed boost, especially over wifi, just by taking Xfinity's routing out of the equation.