diff --git a/etc/inc/interfaces.inc b/etc/inc/interfaces.inc
index 97b8c08de9..3935d7198b 100644
--- a/etc/inc/interfaces.inc
+++ b/etc/inc/interfaces.inc
@@ -1197,9 +1197,6 @@ function interface_bring_down($interface = "wan", $destroy = false, $ifacecfg =
 	case "slaac":
 	case "dhcp6":
 		$pidv6 = find_dhcp6c_process($realif);
-		if($pidv6)
-			posix_kill($pidv6, SIGTERM);
-		$pidv6 = find_rtsold_process($realif);
 		if($pidv6)
 			posix_kill($pidv6, SIGTERM);
 		sleep(3);
@@ -2691,17 +2688,6 @@ function find_dhclient_process($interface) {
 	return intval($pid);
 }
 
-function find_rtsold_process($interface) {
-	global $g;
-
-	if ($interface && isvalidpid("{$g['varrun_path']}/rtsold_{$interface}.pid"))
-		$pid = trim(file_get_contents("{$g['varrun_path']}/rtsold_{$interface}.pid"), " \n");
-	else
-		return(false);
-
-	return intval($pid);
-}
-
 function find_dhcp6c_process($interface) {
 	global $g;
 
diff --git a/usr/local/www/interfaces.php b/usr/local/www/interfaces.php
index cd3b78fae9..901151bd9b 100755
--- a/usr/local/www/interfaces.php
+++ b/usr/local/www/interfaces.php
@@ -727,9 +727,6 @@ if ($_POST['apply']) {
 				$pid = find_dhcp6c_process($wancfg['if']);
 				if($pid)
 					posix_kill($pid, SIGTERM);
-				$pid = find_rtsold_process($wancfg['if']);
-				if($pid)
-					posix_kill($pid, SIGTERM);
 			} else if ($wancfg['ipaddr'] == "dhcp") {
 				$pid = find_dhclient_process($wancfg['if']);
 				if($pid)