Fila ListView de Android no visible

I am trying to make a ListView row that has an icon to the left, followed by two stacked rows to the right. However, for some reason the bottom row on the right is not showing up. My question to the StackOverflow experts is: what is incorrect in my XML to make the bottom row not show up?

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="6dip" >

<ImageView
    android:id="@+id/icon"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:layout_marginRight="6dip"
    android:src="@drawable/ap" />

<RelativeLayout
    android:layout_width="fill_parent"
    android:layout_height="40dip" >

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="20dip" >

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="20dip" >

        <TextView
            android:id="@+id/bssid"
            android:layout_width="140dip"
            android:layout_height="20dip"
            android:gravity="center_vertical|left"
            android:textColor="@color/foreground" />

        <TextView
            android:id="@+id/ssid"
            android:layout_width="190dip"
            android:layout_height="20dip"
            android:layout_alignParentTop="true"
            android:layout_toRightOf="@id/bssid"
            android:gravity="center_vertical|right"
            android:textColor="@color/foreground" />

         <TextView
            android:id="@+id/enc"
            android:layout_width="100dip"
            android:layout_height="20dip"
            android:layout_alignParentTop="true"
            android:layout_toRightOf="@id/ssid"
            android:gravity="center_vertical|right"
            android:textColor="@color/foreground" />

         <TextView
            android:id="@+id/power"
            android:layout_width="70dip"
            android:layout_height="20dip"
            android:layout_alignParentTop="true"
            android:layout_toRightOf="@id/enc"
            android:gravity="center_vertical|right"
            android:textColor="@color/foreground" />

     </RelativeLayout>
     <RelativeLayout
         android:layout_height="20dip"
         android:layout_width="match_parent" >

        <TextView
            android:id="@+id/mgmt"
            android:layout_width="55dip"
            android:layout_height="20dip"
            android:gravity="center_vertical|right"
            android:textColor="@color/foreground" />

        <TextView
            android:id="@+id/data"
            android:layout_width="55dip"
            android:layout_height="20dip"
            android:layout_toRightOf="@id/mgmt"
            android:gravity="center_vertical|right"
            android:textColor="@color/foreground" />

        <TextView
            android:id="@+id/manuf"
            android:layout_width="200dip"
            android:layout_height="20dip"
            android:layout_toRightOf="@id/data"
            android:gravity="center_vertical|right"
            android:textColor="@color/foreground" />

        <TextView
            android:id="@+id/lastseen"
            android:layout_width="140dip"
            android:layout_height="20dip"
            android:layout_toRightOf="@id/manuf"
            android:gravity="center_vertical|right"
            android:textColor="@color/foreground" />
    </RelativeLayout>
</LinearLayout>
</RelativeLayout>
</LinearLayout>

Also, if you have a better idea or way to do this, I am certainly open to it. Thank you for your help.