diff --git a/README.md b/README.md
index 690c5ae..9c3b821 100644
--- a/README.md
+++ b/README.md
@@ -74,7 +74,7 @@ If you are using the scripts on a different Fritz!Box model please let me know b
 1. Pre-requesites for the fritzbox\_traffic and fritzbox\_uptime plugins are the [fritzconnection](https://pypi.python.org/pypi/fritzconnection) and [requests](https://pypi.python.org/pypi/requests) package. To install it
 
         pip install fritzconnection
-        pip install requests
+        pip install lxml
 
 2. Make sure the FritzBox has UPnP status information enabled. (German interface: Heimnetz > Heimnetzübersicht > Netzwerkeinstellungen > Statusinformationen über UPnP übertragen)
 
diff --git a/fritzbox__connection_uptime.py b/fritzbox__connection_uptime.py
index b71106c..b36d76f 100755
--- a/fritzbox__connection_uptime.py
+++ b/fritzbox__connection_uptime.py
@@ -24,10 +24,11 @@ import sys
 
 from fritzconnection.lib.fritzstatus import FritzStatus
 
+hostname = os.path.basename(__file__).split('_')[1]
 
 def print_values():
     try:
-        conn = FritzStatus(address=os.environ['fritzbox_ip'], password=os.environ['fritzbox_password'])
+        conn = FritzStatus(address=hostname, password=os.environ['fritzbox_password'])
     except Exception:
         sys.exit("Couldn't get connection uptime")
 
@@ -36,7 +37,6 @@ def print_values():
 
 
 def print_config():
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print("graph_title AVM Fritz!Box Connection Uptime")
     print("graph_args --base 1000 -l 0")
diff --git a/fritzbox__cpu_temperature.py b/fritzbox__cpu_temperature.py
index 02670c1..e608c72 100755
--- a/fritzbox__cpu_temperature.py
+++ b/fritzbox__cpu_temperature.py
@@ -21,12 +21,13 @@ import sys
 import fritzbox_helper as fh
 
 PAGE = 'ecoStat'
+hostname = os.path.basename(__file__).split('_')[1]
 
 
 def get_cpu_temperature():
     """get the current cpu temperature"""
 
-    server = os.environ['fritzbox_ip']
+    server = hostname
     password = os.environ['fritzbox_password']
 
     session_id = fh.get_session_id(server, password)
@@ -36,7 +37,6 @@ def get_cpu_temperature():
 
 
 def print_config():
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print("graph_title AVM Fritz!Box CPU temperature")
     print("graph_vlabel degrees Celsius")
diff --git a/fritzbox__cpu_usage.py b/fritzbox__cpu_usage.py
index 5ac8a0d..9109844 100755
--- a/fritzbox__cpu_usage.py
+++ b/fritzbox__cpu_usage.py
@@ -20,13 +20,14 @@ import os
 import sys
 import fritzbox_helper as fh
 
-PAGE = { '7': 'ecoStat', '6': 'system/ecostat.lua' }
+PAGE = 'ecoStat'
+hostname = os.path.basename(__file__).split('_')[1]
 
 
 def get_cpu_usage():
     """get the current cpu usage"""
 
-    server = os.environ['fritzbox_ip']
+    server = hostname
     password = os.environ['fritzbox_password']
 
     session_id = fh.get_session_id(server, password)
@@ -36,7 +37,6 @@ def get_cpu_usage():
 
 
 def print_config():
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print("graph_title AVM Fritz!Box CPU usage")
     print("graph_vlabel %")
diff --git a/fritzbox__memory_usage.py b/fritzbox__memory_usage.py
index d91bc3f..868ce43 100755
--- a/fritzbox__memory_usage.py
+++ b/fritzbox__memory_usage.py
@@ -22,12 +22,13 @@ import fritzbox_helper as fh
 
 PAGE = 'ecoStat'
 USAGE = ['strict', 'cache', 'free']
+hostname = os.path.basename(__file__).split('_')[1]
 
 
 def get_memory_usage():
     """get the current memory usage"""
 
-    server = os.environ['fritzbox_ip']
+    server = hostname
     password = os.environ['fritzbox_password']
 
     session_id = fh.get_session_id(server, password)
@@ -38,7 +39,6 @@ def get_memory_usage():
 
 
 def print_config():
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print("graph_title AVM Fritz!Box Memory")
     print("graph_vlabel %")
diff --git a/fritzbox__power_consumption.py b/fritzbox__power_consumption.py
index f7c290f..8f1a143 100755
--- a/fritzbox__power_consumption.py
+++ b/fritzbox__power_consumption.py
@@ -24,12 +24,12 @@ import fritzbox_helper as fh
 
 PAGE = 'energy'
 DEVICES = ['system', 'cpu', 'wifi', 'dsl', 'ab', 'usb']
-
+hostname = os.path.basename(__file__).split('_')[1]
 
 def get_power_consumption():
     """get the current power consumption usage"""
 
-    server = os.environ['fritzbox_ip']
+    server = hostname
     password = os.environ['fritzbox_password']
 
     session_id = fh.get_session_id(server, password)
@@ -41,7 +41,6 @@ def get_power_consumption():
 
 
 def print_config():
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print("graph_title AVM Fritz!Box Power Consumption")
     print("graph_vlabel %")
diff --git a/fritzbox__traffic.py b/fritzbox__traffic.py
index d55a4aa..2c6c83a 100755
--- a/fritzbox__traffic.py
+++ b/fritzbox__traffic.py
@@ -24,10 +24,13 @@ import sys
 
 from fritzconnection.lib.fritzstatus import FritzStatus
 
+hostname = os.path.basename(__file__).split('_')[1]
+
 def print_values():
     try:
-        conn = FritzStatus(address=os.environ['fritzbox_ip'], password=os.environ['fritzbox_password'])
+        conn = FritzStatus(address=hostname, password=os.environ['fritzbox_password'])
     except Exception as e:
+        print(e)
         sys.exit("Couldn't get WAN traffic")
 
     traffic =  conn.transmission_rate
@@ -46,13 +49,13 @@ def print_values():
 
 def print_config():
     try:
-        conn = FritzStatus(address=os.environ['fritzbox_ip'], password=os.environ['fritzbox_password'])
+        conn = FritzStatus(address=hostname, password=os.environ['fritzbox_password'])
     except Exception as e:
+        print(e)
         sys.exit("Couldn't get WAN traffic")
 
     max_traffic = conn.max_bit_rate
 
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print("graph_title AVM Fritz!Box WAN traffic")
     print("graph_args --base 1000")
diff --git a/fritzbox__uptime.py b/fritzbox__uptime.py
index 1a71c5d..6463626 100755
--- a/fritzbox__uptime.py
+++ b/fritzbox__uptime.py
@@ -31,12 +31,13 @@ minutesLoc = {"de": "Minuten", "en": "minutes"}
 
 PAGE = 'energy'
 pattern = re.compile(patternLoc[locale])
+hostname = os.path.basename(__file__).split('_')[1]
 
 
 def get_uptime():
     """get the current uptime"""
 
-    server = os.environ['fritzbox_ip']
+    server = hostname
     password = os.environ['fritzbox_password']
 
     session_id = fh.get_session_id(server, password)
@@ -59,7 +60,6 @@ def get_uptime():
 
 
 def print_config():
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print("graph_title AVM Fritz!Box Uptime")
     print("graph_args --base 1000 -l 0")
diff --git a/fritzbox__wifi_devices.py b/fritzbox__wifi_devices.py
index c47cd96..f9efb9a 100755
--- a/fritzbox__wifi_devices.py
+++ b/fritzbox__wifi_devices.py
@@ -25,13 +25,15 @@ import sys
 
 from fritzconnection.lib.fritzwlan import FritzWLAN
 
+hostname = os.path.basename(__file__).split('_')[1]
 
 def get_connected_wifi_devices():
     """gets the numbrer of currently connected wifi devices"""
 
     try:
-        conn = FritzWLAN(address=os.environ['fritzbox_ip'], password=os.environ['fritzbox_password'])
+        conn = FritzWLAN(address=hostname, password=os.environ['fritzbox_password'])
     except Exception as e:
+        print(e)
         sys.exit("Couldn't get connection uptime")
 
 
@@ -40,7 +42,6 @@ def get_connected_wifi_devices():
 
 
 def print_config():
-    hostname = os.path.basename(__file__).split('_')[1]
     print("host_name %s" % hostname)
     print('graph_title AVM Fritz!Box Connected Wifi Devices')
     print('graph_vlabel Number of devices')