diff --git a/ppp_installer/configs.sh b/ppp_installer/configs.sh
index 4d731e5..f127ae3 100644
--- a/ppp_installer/configs.sh
+++ b/ppp_installer/configs.sh
@@ -1,5 +1,6 @@
-#!/binenv bash
+#!/bin/env bash
 
-INTERVAL=60
-DOUBLE_CHECK_WAIT=10
-PING_TIMEOUT=9
\ No newline at end of file
+INTERVAL=60 # Seconds, Interval between two connection check of internet
+DOUBLE_CHECK_WAIT=10    # Seconds, wait time for double check when the connection is down
+PING_TIMEOUT=9  # Seconds, Timeout of ping command          
+NETWORK_CHECK_TIMEOUT=300   # Count, Check network for ($NETWORK_TIMEOUT x 2 Seconds) 
\ No newline at end of file
diff --git a/ppp_installer/functions.sh b/ppp_installer/functions.sh
index 9d66796..2a03043 100644
--- a/ppp_installer/functions.sh
+++ b/ppp_installer/functions.sh
@@ -1,5 +1,7 @@
 #!/bin/env bash
 
+source configs.sh
+
 function debug()
 {
     echo $(date "+%Y/%m/%d - %H:%M:%S :") "$1"
@@ -7,12 +9,10 @@ function debug()
 
 function check_network()
 {   
-    NETWORK_TIMEOUT=300     # Check network for ($NETWORK_TIMEOUT x 2 Seconds)     
-
     # Check the network is ready
     debug "Checking the network is ready..."
 
-    for i in {1..$NETWORK_TIMEOUT}; do
+    for i in {1..$NETWORK_CHECK_TIMEOUT}; do
         NETWORK_OK=0
 
         debug "SIM Status:"
diff --git a/ppp_installer/test.sh b/ppp_installer/test.sh
index b46f5ec..22d4342 100644
--- a/ppp_installer/test.sh
+++ b/ppp_installer/test.sh
@@ -1,7 +1,7 @@
 #!/bin/env bash
 
 source functions.sh
-source config.sh
+source configs.sh
 
 echo "PING TIMEOUT: " $PING_TIMEOUT
 echo "DOUBLE CHECK WAIT: " $DOUBLE_CHECK_WAIT