diff --git a/package/kit-busrouter/files/usr/lib/busrouter/telemetry-synology.sh b/package/kit-busrouter/files/usr/lib/busrouter/telemetry-synology.sh
index f87848e..643d9a8 100755
--- a/package/kit-busrouter/files/usr/lib/busrouter/telemetry-synology.sh
+++ b/package/kit-busrouter/files/usr/lib/busrouter/telemetry-synology.sh
@@ -249,8 +249,7 @@ _ping_iface() {
 			_gw_loss=$(echo "$_gw_out" | sed -n 's/.* \([0-9]*\)% packet loss.*/\1/p')
 			if [ -n "$_gw_loss" ] && [ "$_gw_loss" != "100" ]; then
 				_loss="$_gw_loss"
-				_avg=$(echo "$_gw_out" | tail -1 | sed -n 's/.*=\ [0-9.]*\/\([0-9.]*\)\/.*/\1/p')
-				[ -z "$_avg" ] && _avg="null"
+				_avg="null"   # gateway RTT is LAN latency, not meaningful as WAN metric
 			fi
 		fi
 	fi
@@ -335,7 +334,7 @@ _detect_carrier() {
 	for _n in 1 2; do
 		_mod=$(_read_file "${AIWANBAL_DIR}/wan${_n}_modem_type" 2>/dev/null)
 		_active=$(_read_file "${AIWANBAL_DIR}/wan${_n}_state" 2>/dev/null)
-		if [ "$_mod" != "eyeride" ] && [ "$_mod" != "none" ] && [ -n "$_mod" ] && [ "$_active" = "up" ]; then
+		if [ "$_mod" != "eyeride" ] && [ "$_mod" != "none" ] && [ "$_mod" != "generic" ] && [ -n "$_mod" ] && [ "$_active" = "up" ]; then
 			echo "$_mod"; return
 		fi
 	done