diff --git a/luci-app-openmptcprouter/root/bin/omr-3g b/luci-app-openmptcprouter/root/bin/omr-3g
index 870688b15..1c65b2963 100755
--- a/luci-app-openmptcprouter/root/bin/omr-3g
+++ b/luci-app-openmptcprouter/root/bin/omr-3g
@@ -1,7 +1,7 @@
 #!/bin/sh
 MODEM_INTF=$1
 [ -z "$MODEM_INTF" ] && return
-SIGNAL_INFO=$(gcom info -d $MODEM_INTF)
+SIGNAL_INFO=$(timeout 1 gcom info -d $MODEM_INTF)
 [ -z "$SIGNAL_INFO" ] && return
 RSSI=$(echo $SIGNAL_INFO | grep RSSI | awk -F: '{print $2}')
 [ -z "$RSSI" ] && return
diff --git a/luci-app-openmptcprouter/root/bin/omr-huawei b/luci-app-openmptcprouter/root/bin/omr-huawei
index f5d9c8741..0efe8676f 100755
--- a/luci-app-openmptcprouter/root/bin/omr-huawei
+++ b/luci-app-openmptcprouter/root/bin/omr-huawei
@@ -2,6 +2,7 @@
 MODEM_IP=`echo $1 | grep -E '^(192\.168|10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.)'`
 [ -z "$MODEM_IP" ] && return
 SESTOK=$(curl -s -m 1 -X GET "http://$MODEM_IP/api/webserver/SesTokInfo")
+[ -z "$SESTOK" ] && return
 COOKIE=$(echo $SESTOK | sed -ne '/SesInfo/{s/.*<SesInfo>\(.*\)<\/SesInfo>.*/\1/p;q;}')
 COOKIE=$(echo $COOKIE | sed 's:SessionID=::')
 TOKEN=$(echo $SESTOK | sed -ne '/TokInfo/{s/.*<TokInfo>\(.*\)<\/TokInfo>.*/\1/p;q;}')
diff --git a/luci-app-openmptcprouter/root/bin/omr-modemmanager b/luci-app-openmptcprouter/root/bin/omr-modemmanager
index cce31181e..4ab427a86 100755
--- a/luci-app-openmptcprouter/root/bin/omr-modemmanager
+++ b/luci-app-openmptcprouter/root/bin/omr-modemmanager
@@ -1,10 +1,10 @@
 #!/bin/sh
 MODEM_INTF=$1
 [ -z "$MODEM_INTF" ] && return
-ALL_MODEMS=$(mmcli -L)
+ALL_MODEMS=$(timeout 1 mmcli -L)
 for MODEM in $ALL_MODEMS; do
 	MODEM_ID=$(echo $MODEM |  awk -F' ' '{print $1}' | awk -F/ '{print $6}')
-	MODEM_INFO=$(mmcli -m $MODEM_ID --output-keyvalue | grep $MODEM_INTF)
+	MODEM_INFO=$(timeout 1 mmcli -m $MODEM_ID --output-keyvalue | grep $MODEM_INTF)
 done
 [ -z "$MODEM_INFO" ] && return
 PERCENT=$(echo $MODEM_INFO | grep 'modem.generic.signal-quality.value' | awk -F": " '{print $2}')
diff --git a/luci-app-openmptcprouter/root/bin/omr-qmi b/luci-app-openmptcprouter/root/bin/omr-qmi
index 327cdb1bd..d7c7028dd 100755
--- a/luci-app-openmptcprouter/root/bin/omr-qmi
+++ b/luci-app-openmptcprouter/root/bin/omr-qmi
@@ -1,7 +1,7 @@
 #!/bin/sh
 MODEM_INTF=$1
 [ -z "$MODEM_INTF" ] && return
-SIGNAL_INFO=$(uqmi -d $MODEM_INTF --get-signal-info)
+SIGNAL_INFO=$(timeout 1 uqmi -d $MODEM_INTF --get-signal-info)
 [ -z "$SIGNAL_INFO" ] && return
 TYPE=$(echo $SIGNAL_INFO | jsonfilter -e '@.type')
 if [ "$TYPE" = "gsm" ]; then