Described embodiments improve the performance of a computer network using multiplexed application layer streams of network traffic. Multiplexed application layer streams of network traffic from the client to the server can be received via a first transport control protocol (TCP) connection. The multiplexed application layer streams of network traffic can include a first data packet with a first sequence number. The first data packet with the first sequence number can be forwarded to the server via a second TCP connection. A ping frame of an application layer protocol can be transmitted to the client to cause the client to increase a next sequence number. A second data packet can be received from the client with the next sequence number including a second sequence number. The second sequence number of the second data packet can be adjusted to be a third sequence number expected by the second TCP connection.