diff --git a/mptcp/files/usr/share/omr/post-tracking.d/010-services b/mptcp/files/usr/share/omr/post-tracking.d/010-services
index f2407ea01..8973c0cca 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/010-services
+++ b/mptcp/files/usr/share/omr/post-tracking.d/010-services
@@ -121,6 +121,19 @@ if ([ -f /etc/init.d/shadowsocks-libev ] && [ "$(uci -q get shadowsocks-libev.ss
 	[ -n "$(uci -q changes openmptcprouter)" ] && uci -q commit openmptcprouter
 fi
 
+restart_omrtracker() {
+	[ -n "$(pgrep -f "omr-tracker $1)" ] && return
+	config_get multipath "$1" multipath
+	config_get ifenabled "$1" auto
+	[ -z "$multipath" ] || [ "$multipath" = "off" ] && return
+	[ "$ifenabled" = "0" ] && return
+	/etc/init.d/omr-tracker start_interface "$1"
+	sleep 10
+}
+
+config_load network
+config_foreach restart_omrtracker interface
+
 if [ -f /etc/init.d/shadowsocks-libev ] && [ "$(uci -q get shadowsocks-libev.sss0.disabled)" != "1" ] && [ "$(uci -q get shadowsocks-libev.sss0.key)" != "" ] && [ "$(uci -q get shadowsocks-libev.sss0.server)" != "" ] && [ "$(uci -q get shadowsocks-libev.sss0.server)" != "192.18.1.3" ] && [ "$(pgrep -f omr-tracker-ss)" = "" ] && [ "$(pgrep -f '/etc/init.d/omr-tracker')" = "" ]; then
 	_log "Can't find omr-tracker-ss, restart omr-tracker..."
 	/etc/init.d/omr-tracker restart 2>&1 >/dev/null
diff --git a/omr-tracker/files/bin/omr-tracker-server b/omr-tracker/files/bin/omr-tracker-server
index 940c119b8..cff94206b 100755
--- a/omr-tracker/files/bin/omr-tracker-server
+++ b/omr-tracker/files/bin/omr-tracker-server
@@ -66,7 +66,7 @@ _check_master() {
 		set_ip() {
 			local ip=$1
 			ipresolve="$(resolveip -4 $ip | head -n 1)"
-			[ -z "$ipresolve" ] && ip="$ipresolve"
+			[ -n "$ipresolve" ] && ip="$ipresolve"
 			#_ping_server $ip
 			_check_server $ip $port
 			if [ "$server_ping" = true ]; then
diff --git a/omr-tracker/files/etc/init.d/omr-tracker b/omr-tracker/files/etc/init.d/omr-tracker
index 31be2a0d5..1b7699ea7 100755
--- a/omr-tracker/files/etc/init.d/omr-tracker
+++ b/omr-tracker/files/etc/init.d/omr-tracker
@@ -9,6 +9,7 @@
 	START=90
 	STOP=10
 	USE_PROCD=1
+	EXTRA_COMMAND="start_interface"
 }
 
 . /usr/lib/unbound/iptools.sh
@@ -331,9 +332,16 @@ _launch_xray_tracker() {
 	sleep 1
 }
 
+_dns_server() {
+	local ip=$1
+	resolv=$(resolveip -4 ${ip} | head -n 1)
+	[ -n "${resolv}" ] && [ "${resolv}" != "${ip}" ] && multiserver=true
+}
+
 _multi_server() {
 	config_get backup $1 backup
 	[ "$backup" = "1" ] && multiserver=true
+	config_list_foreach $1 ip _dns_server
 }
 
 _gre_tunnel() {
@@ -341,6 +349,11 @@ _gre_tunnel() {
 	[ "$proto" = "gre" ] && gretunnel=true
 }
 
+start_interface() {
+	[ -z "$1" ] && return
+	_launch_tracker $1
+}
+
 start_service() {
 	local ss_enable=0
 	local ss_rust_enable=0
diff --git a/openmptcprouter/files/etc/init.d/openvpnbonding b/openmptcprouter/files/etc/init.d/openvpnbonding
index 77d0b8c75..2ee974896 100755
--- a/openmptcprouter/files/etc/init.d/openvpnbonding
+++ b/openmptcprouter/files/etc/init.d/openvpnbonding
@@ -30,7 +30,6 @@ _openvpnbonding() {
 				set openvpn.omr_bonding_${interface}.remote="${remoteip}"
 				set openvpn.omr_bonding_${interface}.local="${localip}"
 				set openvpn.omr_bonding_${interface}.lport='0'
-				set openvpn.omr_bonding_${interface}.ncp_disable='1'
 				set openvpn.omr_bonding_${interface}.auth_nocache='1'
 				set openvpn.omr_bonding_${interface}.proto='udp'
 				set openvpn.omr_bonding_${interface}.client='1'
diff --git a/openmptcprouter/files/etc/uci-defaults/2020-omr-vpn b/openmptcprouter/files/etc/uci-defaults/2020-omr-vpn
index a8a84193c..962c03d39 100755
--- a/openmptcprouter/files/etc/uci-defaults/2020-omr-vpn
+++ b/openmptcprouter/files/etc/uci-defaults/2020-omr-vpn
@@ -37,7 +37,6 @@ if [ "$(uci -q get openvpn.omr.proto)" != "tcp-client" ]; then
 		set openvpn.omr.port=65301
 		set openvpn.omr.cipher=AES-256-CBC
 		set openvpn.omr.proto=tcp-client
-		set openvpn.omr.ncp_disable=0
 		set openvpn.omr.auth_nocache=1
 		set openvpn.omr.client=1
 		set openvpn.omr.tls_client=1
@@ -51,6 +50,7 @@ if [ "$(uci -q get openvpn.omr.proto)" != "tcp-client" ]; then
 fi
 
 uci -q delete openvpn.omr.secret
+uci -q delete openvpn.omr.ncp_disable=0
 
 #if [ "$(uci -q get openvpn.omr.com_lzo)" = "" ]; then
 #	uci -q batch <<-EOF >/dev/null
diff --git a/openvpn/files/openvpn.config b/openvpn/files/openvpn.config
index ea442c765..9b5a42655 100644
--- a/openvpn/files/openvpn.config
+++ b/openvpn/files/openvpn.config
@@ -279,17 +279,6 @@ config openvpn sample_server
 	# Use BF-CBC as fallback
 #	option data_ciphers_fallback 'BF-CBC'
 
-	# OpenVPN versions 2.4 and later will attempt to
-	# automatically negotiate the most secure cipher
-	# between the client and server, regardless of a
-	# configured "option cipher" (see below).
-	# Automatic negotiation is recommended.
-	#
-	# Uncomment this option to disable this behavior,
-	# and force all OpenVPN peers to use the configured
-	# cipher option instead (not recommended).
-#	option ncp_disable
-
 	# Enable compression on the VPN link.
 	# If you enable it here, you must also
 	# enable it in the client config file.
diff --git a/openvpn/files/openvpn.options b/openvpn/files/openvpn.options
index 7e3aedb0d..5b8d55a07 100644
--- a/openvpn/files/openvpn.options
+++ b/openvpn/files/openvpn.options
@@ -166,7 +166,6 @@ mlock
 mtu_test
 multihome
 mute_replay_warnings
-ncp_disable
 nobind
 opt_verify
 passtos