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 b2612d487..0f921a888 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -341,15 +341,22 @@ if [ "$OMR_TRACKER_INTERFACE" = "glorytun" ] || [ "$OMR_TRACKER_INTERFACE" = "om
 			ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
 			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
 		elif [ -z "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.mtu)" ]; then
-			#[ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ] && {
-			#	local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP $serverip)
-			local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 8.8.8.8)
-			[ -n "$mtu" ] && {
-				uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
-				ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
-				uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
+			[ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ] && {
+				local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP $serverip)
+				#local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 8.8.8.8)
+				[ -n "$mtu" ] && {
+					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
+					ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
+					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
+				}
+			} || {
+				local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 8.8.8.8)
+				[ -n "$mtu" ] && {
+					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
+					ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
+					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
+				}
 			}
-			#}
 		else
 			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
 		fi
@@ -499,10 +506,10 @@ if [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc)" = "" ] || [ $(($(
 			}
 		fi
 		local serverip=$(uci -q get shadowsocks-libev.sss0.server)
-		[ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ] && {
-			omrtracebox="$(omr-tracebox-mptcp $serverip $OMR_TRACKER_DEVICE)"
-			[ -n "$omrtracebox" ] && uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mptcp_status="$omrtracebox"
-		}
+		#[ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ] && {
+		#	omrtracebox="$(omr-tracebox-mptcp $serverip $OMR_TRACKER_DEVICE)"
+		#	[ -n "$omrtracebox" ] && uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mptcp_status="$omrtracebox"
+		#}
 		[ -n "$ipaddr" ] && uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.publicip="$ipaddr"
 		[ -n "$OMR_TRACKER_LATENCY" ] && uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.latency="$OMR_TRACKER_LATENCY"
 		[ -n "$asn" ] && {
@@ -516,14 +523,19 @@ if [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc)" = "" ] || [ $(($(
 			}
 			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
 		else
-			#[ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ] && {
-				#local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP $serverip)
+			[ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ] && {
+				local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP $serverip)
+				[ -n "$mtu" ] && {
+					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
+					ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
+				}
+			} || {
 				local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 8.8.8.8)
 				[ -n "$mtu" ] && {
 					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
 					ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
 				}
-			#}
+			}
 		fi
 		uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
 	}