diff --git a/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java b/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java
index f3ab2dd34d..103964bb52 100644
--- a/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java
+++ b/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/filter/NettyWriteResponseFilter.java
@@ -121,7 +121,8 @@ else if (bufferFactory instanceof DefaultDataBufferFactory) {
 
 	private void cleanup(ServerWebExchange exchange) {
 		Connection connection = exchange.getAttribute(CLIENT_RESPONSE_CONN_ATTR);
-		if (connection != null) {
+		if (connection != null && connection.channel().isActive()
+				&& !connection.isPersistent()) {
 			connection.dispose();
 		}
 	}