diff --git a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
index bccd15eca..cf6b21703 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -799,7 +799,7 @@ if [ "$OMR_TRACKER_INTERFACE" = "glorytun" ] || [ "$OMR_TRACKER_INTERFACE" = "om
 		if [ "$(pgrep openmptcprouter-vps)" = "" ]; then
 			/etc/init.d/openmptcprouter-vps restart >/dev/null 2>&1
 		fi
-		[ "$(uci -q get shadowsocks-libev.sss0.disabled)" != "1" ] && conntrack -D -p udp
+		[ "$(uci -q get shadowsocks-libev.sss0.disabled)" != "1" ] && conntrack -D -p udp 2>&1 >/dev/null
 	fi
 
 	# Set VPN MTU
@@ -1138,7 +1138,8 @@ if [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc)" = "" ] || [ $(($(
 		if [ -n "$lanip" ] && [ -n "$masterip" ] && [ -n "$ipaddr" ] && [ "$ipaddr" = "$masterip" ] && [ "$(uci -q get openmptcprouter.settings.disableloopdetection)" != "1" ]; then
 			loop=0
 			routingloop() {
-				if [ "$(omr-routing-loop $1 $lanip)" = "detected" ]; then
+				vpsip="$(uci -q get openmptcprouter.$1.ip)"
+				if [ -n "$vpsip" ] && [ "$(omr-routing-loop $vpsip $lanip)" = "detected" ]; then
 					loop=1
 				fi
 			}