Comcast is by far the biggest offender. More than half the xfinitywifi APs I connected to had no usable connectivity. Ended up removing the network completely a

Comcast is by far the biggest offender. More than half the xfinitywifi APs I connected to had no usable connectivity. Ended up removing the network completely and never connecting to any of them. As expected of Comcast, the Preventer of Information Access, I know.