diff -urN linux-2.2.14.2/net/ipv4/tcp_input.c linux-2.2.14.2.aa7/net/ipv4/tcp_input.c
--- linux-2.2.14.2/net/ipv4/tcp_input.c	Fri Feb 18 11:50:07 2000
+++ linux-2.2.14.2.aa7/net/ipv4/tcp_input.c	Fri Feb 18 11:58:58 2000
@@ -96,6 +96,7 @@
  */
 static void tcp_delack_estimator(struct tcp_opt *tp)
 {
+	tcp_exit_quickack_mode(tp);
 	if(tp->ato == 0) {
 		tp->lrcvtime = tcp_time_stamp;
 
@@ -114,10 +115,7 @@
 		if(m > tp->rto)
 			tp->ato = tp->rto;
 		else {
-			/* This funny shift makes sure we
-			 * clear the "quick ack mode" bit.
-			 */
-			tp->ato = ((tp->ato << 1) >> 2) + m;
+			tp->ato = (tp->ato >> 1) + m;
 		}
 	}
 }
diff -urN linux-2.2.14.2/net/ipv4/tcp_ipv4.c linux-2.2.14.2.aa7/net/ipv4/tcp_ipv4.c
--- linux-2.2.14.2/net/ipv4/tcp_ipv4.c	Tue Jan  4 19:12:27 2000
+++ linux-2.2.14.2.aa7/net/ipv4/tcp_ipv4.c	Fri Feb 18 11:58:58 2000
@@ -1394,6 +1394,7 @@
 		newtp->snd_una = req->snt_isn + 1;
 		newtp->srtt = 0;
 		newtp->ato = 0;
+		tcp_enter_quickack_mode(newtp);
 		newtp->snd_wl1 = req->rcv_isn;
 		newtp->snd_wl2 = req->snt_isn;
 
@@ -1937,6 +1938,7 @@
 	skb_queue_head_init(&tp->out_of_order_queue);
 	tcp_init_xmit_timers(sk);
 
+	tcp_enter_quickack_mode(tp);
 	tp->rto  = TCP_TIMEOUT_INIT;		/*TCP_WRITE_TIME*/
 	tp->mdev = TCP_TIMEOUT_INIT;
 	tp->mss_clamp = ~0;
diff -urN linux-2.2.14.2/net/ipv4/tcp_output.c linux-2.2.14.2.aa7/net/ipv4/tcp_output.c
--- linux-2.2.14.2/net/ipv4/tcp_output.c	Fri Feb 18 11:50:07 2000
+++ linux-2.2.14.2.aa7/net/ipv4/tcp_output.c	Fri Feb 18 12:00:06 2000
@@ -1012,6 +1012,17 @@
 	timeout = (tp->ato << 1) >> 1;
 	if (timeout > max_timeout)
 		timeout = max_timeout;
+	if (!timeout)
+	{
+		timeout = tp->rto;
+		if ((signed) timeout <= 0)
+		{
+			printk(KERN_ERR
+				"tcp_send_delayed_ack: rto %ld!\n", timeout);
+			timeout = 1;
+		}
+		timeout = min(timeout, max_timeout);
+	}
 	timeout += jiffies;
 
 	/* Use new timeout only if there wasn't a older one earlier. */
diff -urN linux-2.2.14.2/net/ipv4/tcp_timer.c linux-2.2.14.2.aa7/net/ipv4/tcp_timer.c
--- linux-2.2.14.2/net/ipv4/tcp_timer.c	Fri Feb 18 11:50:07 2000
+++ linux-2.2.14.2.aa7/net/ipv4/tcp_timer.c	Fri Feb 18 11:58:58 2000
@@ -194,7 +194,21 @@
 		if (!atomic_read(&sk->sock_readers))
 			tcp_send_ack(sk);
 		else
-			tcp_send_delayed_ack(&(sk->tp_pinfo.af_tcp), HZ/10);
+		{
+			struct tcp_opt * tp = &(sk->tp_pinfo.af_tcp);
+			int rto;
+
+			rto = tp->rto;
+			if (rto <= 0)
+			{
+				printk(KERN_ERR
+				       "tcp_delack_timer: rto %d!\n", rto);
+				rto = 1;
+			}
+			rto = min(rto, HZ/10);
+			tp->delack_timer.expires = rto + jiffies;
+			add_timer(&tp->delack_timer);
+		}
 	}
 }