diff --git a/fritzbox_cpu_temperature.py b/fritzbox_cpu_temperature.py
index fddcc21..159cc73 100755
--- a/fritzbox_cpu_temperature.py
+++ b/fritzbox_cpu_temperature.py
@@ -9,6 +9,7 @@
 
   [fritzbox_*]
   env.fritzbox_ip [ip address of the fritzbox]
+  env.fritzbox_username [fritzbox username]
   env.fritzbox_password [fritzbox password]
   
   This plugin supports the following munin configuration parameters:
@@ -29,9 +30,10 @@ def get_cpu_temperature():
     """get the current cpu temperature"""
 
     server = os.environ['fritzbox_ip']
+    username = os.environ['fritzbox_username']
     password = os.environ['fritzbox_password']
 
-    sid = fh.get_sid(server, password)
+    sid = fh.get_sid(server, username, password)
     data = fh.get_page(server, sid, PAGE)
 
     m = re.search(pattern, data)
diff --git a/fritzbox_cpu_usage.py b/fritzbox_cpu_usage.py
index 875c203..ef9469a 100755
--- a/fritzbox_cpu_usage.py
+++ b/fritzbox_cpu_usage.py
@@ -9,6 +9,7 @@
 
   [fritzbox_*]
   env.fritzbox_ip [ip address of the fritzbox]
+  env.fritzbox_username[fritzbox username]
   env.fritzbox_password [fritzbox password]
   
   This plugin supports the following munin configuration parameters:
@@ -29,9 +30,10 @@ def get_cpu_usage():
     """get the current cpu usage"""
 
     server = os.environ['fritzbox_ip']
+    username = os.environ['fritzbox_username']
     password = os.environ['fritzbox_password']
 
-    sid = fh.get_sid(server, password)
+    sid = fh.get_sid(server, username, password)
     data = fh.get_page(server, sid, PAGE)
 
     m = re.search(pattern, data)
diff --git a/fritzbox_helper.py b/fritzbox_helper.py
index c13c19c..4ffabf6 100755
--- a/fritzbox_helper.py
+++ b/fritzbox_helper.py
@@ -25,7 +25,7 @@ from xml.dom import minidom
 USER_AGENT = "Mozilla/5.0 (U; Windows NT 5.1; rv:5.0) Gecko/20100101 Firefox/5.0"
 
 
-def get_sid(server, password, port=80):
+def get_sid(server, username, password, port=80):
     """Obtains the sid after login into the fritzbox"""
     conn = httplib.HTTPConnection(server + ':' + str(port))
 
@@ -58,7 +58,7 @@ def get_sid(server, password, port=80):
                "Content-Type": "application/x-www-form-urlencoded",
                "User-Agent": USER_AGENT}
 
-    login_page = "/login_sid.lua?&response=" + response_bf
+    login_page = "/login_sid.lua?username=" + username + "&response=" + response_bf
     conn.request("GET", login_page, '', headers)
     response = conn.getresponse()
     data = response.read()
@@ -69,6 +69,7 @@ def get_sid(server, password, port=80):
         sid = re.search("<SID>(.*?)</SID>", data).group(1)
         if sid == "0000000000000000":
             print "ERROR - No SID received because of invalid password"
+
             sys.exit(0)
         return sid
 
diff --git a/fritzbox_memory_usage.py b/fritzbox_memory_usage.py
index 7821f2f..12ae9aa 100755
--- a/fritzbox_memory_usage.py
+++ b/fritzbox_memory_usage.py
@@ -9,6 +9,7 @@
 
   [fritzbox_*]
   env.fritzbox_ip [ip address of the fritzbox]
+  env.fritzbox_username [fritzbox username]
   env.fritzbox_password [fritzbox password]
   
   This plugin supports the following munin configuration parameters:
@@ -30,9 +31,10 @@ def get_memory_usage():
     """get the current memory usage"""
 
     server = os.environ['fritzbox_ip']
+    username = os.environ['fritzbox_username']
     password = os.environ['fritzbox_password']
 
-    sid = fh.get_sid(server, password)
+    sid = fh.get_sid(server, username, password)
     data = fh.get_page(server, sid, PAGE)
     matches = re.finditer(pattern, data)
     if matches:
diff --git a/fritzbox_power_consumption.py b/fritzbox_power_consumption.py
index 919167a..3a5cbc0 100755
--- a/fritzbox_power_consumption.py
+++ b/fritzbox_power_consumption.py
@@ -9,6 +9,7 @@
 
   [fritzbox_*]
   env.fritzbox_ip [ip address of the fritzbox]
+  env.fritzbox_username [fritzbox username]
   env.fritzbox_password [fritzbox password]
   
   This plugin supports the following munin configuration parameters:
@@ -30,9 +31,10 @@ def get_power_consumption():
     """get the current power consumption usage"""
 
     server = os.environ['fritzbox_ip']
+    username = os.environ['fritzbox_username']
     password = os.environ['fritzbox_password']
 
-    sid = fh.get_sid(server, password)
+    sid = fh.get_sid(server, username, password)
     data = fh.get_page(server, sid, PAGE)
     matches = re.finditer(pattern, data)
     if matches:
diff --git a/fritzbox_uptime.py b/fritzbox_uptime.py
index bd502e8..603c1cd 100755
--- a/fritzbox_uptime.py
+++ b/fritzbox_uptime.py
@@ -9,6 +9,7 @@
 
   [fritzbox_*]
   env.fritzbox_ip [ip address of the fritzbox]
+  env.fritzbox_username [fritzbox username]
   env.fritzbox_password [fritzbox password]
 
   This plugin supports the following munin configuration parameters:
@@ -29,9 +30,10 @@ def get_uptime():
     """get the current uptime"""
 
     server = os.environ['fritzbox_ip']
+    username = os.environ['fritzbox_username']
     password = os.environ['fritzbox_password']
 
-    sid = fh.get_sid(server, password)
+    sid = fh.get_sid(server, username, username, password)
     data = fh.get_page(server, sid, PAGE)
     matches = re.finditer(pattern, data)
     if matches:
diff --git a/fritzbox_wifi_devices.py b/fritzbox_wifi_devices.py
index 0c5c01b..38e5565 100755
--- a/fritzbox_wifi_devices.py
+++ b/fritzbox_wifi_devices.py
@@ -9,6 +9,7 @@
 
   [fritzbox_*]
   env.fritzbox_ip [ip address of the fritzbox]
+  env.fritzbox_username [fritzbox username]
   env.fritzbox_password [fritzbox password]
   
   This plugin supports the following munin configuration parameters:
@@ -29,9 +30,10 @@ def get_connected_wifi_devices():
     """gets the numbrer of currently connected wifi devices"""
 
     server = os.environ['fritzbox_ip']
+    username = os.environ['fritzbox_username']
     password = os.environ['fritzbox_password']
 
-    sid = fh.get_sid(server, password)
+    sid = fh.get_sid(server, username, password)
     data = fh.get_page(server, sid, PAGE)
     m = re.search(pattern, data)
     if m: