Abstract—In this paper we present a new TCP retransmission algorithm to recover from multiple non-congestion(transmission) packet drops from the same TCP window. This algorithm will help end-to-end error discriminators to improve TCP perfor-mance over lossy and heterogeneous networks. The simulation results shows that the proposed algorithm has increased TCP performance over different error rates without extra load on the network. This has been achieved by resending only number of packets equal to the dropped packets which have already left the network and by cutting the congestion window even for non-congestion drops. Index Terms—TCP, Lossy networks, Error discriminators I.