diff --git a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
index a033260f0..2231db3d0 100755
--- a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
+++ b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
@@ -1011,7 +1011,7 @@ function settings_add()
 	ucic:set("openmptcprouter","settings","tracebox",tracebox)
 
 	-- Enable/disable ModemManager
-	local modemamanger = luci.http.formvalue("disablemodemmanager") or "1"
+	local modemmanager = luci.http.formvalue("disablemodemmanager") or "1"
 	ucic:set("openmptcprouter","settings","modemmanager",modemmanager)
 
 	-- Enable/disable server ping
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 bdbf001c6..4e3a94880 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -746,13 +746,6 @@ if [ "$OMR_TRACKER_STATUS" = "ERROR" ] || [ "$interface_up" != "true" ]; then
 fi
 
 if [ "$OMR_TRACKER_INTERFACE" = "glorytun" ] || [ "$OMR_TRACKER_INTERFACE" = "omrvpn" ]; then
-	if ([ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]) && [ "$OMR_TRACKER_DEVICE_GATEWAY" != "" ]; then
-		_log "Tunnel up : Replace default route by $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE"
-		ip route replace default scope global nexthop via $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE 2>&1 >/dev/null
-		if [ "$(pgrep openmptcprouter-vps)" = "" ]; then
-			/etc/init.d/openmptcprouter-vps restart >/dev/null 2>&1
-		fi
-	fi
 	if [ "$(uci -q get shadowsocks-libev.sss0.disabled)" != "1" ] && [ "$(uci -q get shadowsocks-libev.ss_rules.redir_udp)" = "hi1" ]; then
 		_log "Tunnel up disable use of ShadowSocks for UDP"
 		uci -q delete shadowsocks-libev.ss_rules.redir_udp
@@ -761,6 +754,14 @@ if [ "$OMR_TRACKER_INTERFACE" = "glorytun" ] || [ "$OMR_TRACKER_INTERFACE" = "om
 			/etc/init.d/shadowsocks-libev rules_up >/dev/null 2>&1
 		fi
 	fi
+	if ([ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]) && [ "$OMR_TRACKER_DEVICE_GATEWAY" != "" ]; then
+		_log "Tunnel up : Replace default route by $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE"
+		ip route replace default scope global nexthop via $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE 2>&1 >/dev/null
+		if [ "$(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
+	fi
 
 	# Set VPN MTU
 	if [ -n "$OMR_TRACKER_LATENCY" ] && ([ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc)" = "" ] || [ $(($(date +"%s") - $(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc))) -gt 3600 ]); then
diff --git a/openmptcprouter-full/Makefile b/openmptcprouter-full/Makefile
index eab020f97..5f24f8029 100755
--- a/openmptcprouter-full/Makefile
+++ b/openmptcprouter-full/Makefile
@@ -30,7 +30,7 @@ MY_DEPENDS := \
     bind-dig \
     libnetfilter-conntrack ebtables ebtables-utils ip-full \
     iptables-mod-iface iptables-mod-ipmark iptables-mod-hashlimit iptables-mod-condition iptables-mod-trace iptables-mod-conntrack-extra iptables-mod-account \
-    kmod-nf-nat kmod-nf-nathelper kmod-nf-nathelper-extra iptables-mod-extra \
+    kmod-nf-nat kmod-nf-nathelper kmod-nf-nathelper-extra iptables-mod-extra conntrack \
     iptables-mod-ipsec kmod-crypto-authenc kmod-ipsec kmod-ipsec4 kmod-ipsec6 kmod-ipt-ipsec \
     wireless-tools \
     libiwinfo-lua \