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 aaa044cae..e00d99fee 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -970,9 +970,11 @@ fi
 # Save wan settings for status page
 if [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc)" = "" ] || [ $(($(date +"%s") + $((30 + RANDOM % 31)) - $(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.lc))) -gt 3600 ] || [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.state)" = "down" ]; then
 	[ "$(uci -q get openmptcprouter.settings.debug)" = "true" ] && _log "Get status and settings for $OMR_TRACKER_INTERFACE..."
+	local ipaddr=""
+	local ip6addr=""
 	if [ "$(uci -q get openmptcprouter.settings.external_check)" != "0" ] && [ "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.vpn)" != "1" ]; then
-		local ipaddr="$(omr-ip-intf $OMR_TRACKER_DEVICE)"
-		local ip6addr="$(omr-ip6-intf $OMR_TRACKER_DEVICE)"
+		[ -n "$OMR_TRACKER_DEVICE_IP" ] && ipaddr="$(omr-ip-intf $OMR_TRACKER_DEVICE)"
+		[ -n "$OMR_TRACKER_DEVICE_IP6" ] && ip6addr="$(omr-ip6-intf $OMR_TRACKER_DEVICE)"
 	else
 		uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
 		uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.state="up"