diff --git a/docs/REVERSE_DNS.md b/docs/REVERSE_DNS.md
index d30efb7b..f14a8abc 100755
--- a/docs/REVERSE_DNS.md
+++ b/docs/REVERSE_DNS.md
@@ -45,7 +45,7 @@ services:
       - TZ=Europe/Berlin
       - PORT=20211
     network_mode: host
-    dns:
+    dns:           # specifying the DNS servers used for the container
       - 10.8.0.1
       - 10.8.0.17
 ```
diff --git a/front/plugins/_publisher_mqtt/config.json b/front/plugins/_publisher_mqtt/config.json
index d1bf768e..a7ccde1b 100755
--- a/front/plugins/_publisher_mqtt/config.json
+++ b/front/plugins/_publisher_mqtt/config.json
@@ -732,7 +732,7 @@
       "description": [
         {
           "language_code": "en_us",
-          "string": "The topic root of the devices sensors. Inserted into the <code>{MQTT_topic_root}/sensor/{DEVICE_ID}/state</code> topic."
+          "string": "The topic root of the devices sensors. Inserted into the <code>{MQTT_topic_root}/sensor/{MQTT_DEVICE_ID}/state</code> topic."
         }
       ]
     },
diff --git a/front/plugins/db_cleanup/config.json b/front/plugins/db_cleanup/config.json
index 4370f55c..832c408a 100755
--- a/front/plugins/db_cleanup/config.json
+++ b/front/plugins/db_cleanup/config.json
@@ -173,7 +173,7 @@
           }
         ]
       },
-      "default_value": 30,
+      "default_value": 300,
       "options": [],
       "localized": ["name", "description"],
       "name": [
diff --git a/front/plugins/maintenance/config.json b/front/plugins/maintenance/config.json
index dfe5c696..df8e79c3 100755
--- a/front/plugins/maintenance/config.json
+++ b/front/plugins/maintenance/config.json
@@ -161,7 +161,7 @@
           }
         ]
       },
-      "default_value": 30,
+      "default_value": 300,
       "options": [],
       "localized": ["name", "description"],
       "name": [
diff --git a/front/plugins/nbtscan_scan/nbtscan.py b/front/plugins/nbtscan_scan/nbtscan.py
index 91e5fe5f..3a4db784 100755
--- a/front/plugins/nbtscan_scan/nbtscan.py
+++ b/front/plugins/nbtscan_scan/nbtscan.py
@@ -56,7 +56,7 @@ def main():
 
     mylog('verbose', [f'[{pluginName}] Unknown devices count: {len(unknown_devices)}'])   
     
-    # TEST
+    # TEST - below is a WINDOWS host IP
     # execute_name_lookup('192.168.1.121', timeout)
 
     for device in unknown_devices:
@@ -86,7 +86,7 @@ def main():
 #===============================================================================
 def execute_name_lookup (ip, timeout):
     """
-    Execute the NBLOOKUP command on IP.
+    Execute the NBTSCAN command on IP.
     """
     
     args = ['nbtscan', ip]