Systems and methods described herein intelligently multiplex different types of traffic in a fixed wireless access (FWA) environment by communicating with the user/application directly so that the network capacity can be maximized for different types of traffic. A routing device in a customer premises network receives a routing policy and receives an indication of network congestion conditions. The routing device identifies one or more sources of delay-tolerant traffic in the customer premises network, such as a local area network (LAN), and applies the routing policy to delay data transmissions from the source based on identifying the indication of network congestion conditions.