Default value for NET connection

dialogconfig.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>385</width>
-    <height>338</height>
+    <height>378</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -145,7 +145,10 @@
        <item row="3" column="1">
         <widget class="QLineEdit" name="lineEdit_ip">
          <property name="toolTip">
-          <string>e.g. 127.0.0.1:4532</string>
+          <string>rigctld ip:port</string>
+         </property>
+         <property name="text">
+          <string>127.0.0.1:4532</string>
          </property>
         </widget>
        </item>