--- a/etcnet/etc/net/scripts/functions	
+++ a/etcnet/etc/net/scripts/functions	
@@ -507,9 +507,13 @@ stop_dhcp_client()
 			;;
 	esac
 	if [ -s $PIDFILE ]; then
-		kill -SIGHUP `cat $PIDFILE`
-		# There probably should be a delay/wait loop here, dhcpcd doesn't die fast.
-		sleep ${DHCP_GRACE_TIME:-0}
+		local pid=`cat $PIDFILE`
+		local i=0
+		kill -SIGHUP $pid
+		while [ "$i" -lt "${DHCP_GRACE_TIME:-0}" ] && kill -0 $pid 2>/dev/null; do
+			sleep 1
+			i=$(($i + 1))
+		done
 		# dhcpcd will bring down the interface when stopping. To keep etcnet logics
 		# to work (running shutdown scripts for example) we should bring it up again
 		$IP link set dev $NAME up