diff --git a/EduNetworkBuilder/EduNetworkBuilder.csproj b/EduNetworkBuilder/EduNetworkBuilder.csproj
index 38ed65a..a93d282 100644
--- a/EduNetworkBuilder/EduNetworkBuilder.csproj
+++ b/EduNetworkBuilder/EduNetworkBuilder.csproj
@@ -272,6 +272,7 @@
     <None Include="Resources\Level0-Ping.enbx" />
     <None Include="Resources\Level0-SimpleDHCP.enbx" />
     <None Include="Resources\Level0_BrokenLink.enbx" />
+    <None Include="Resources\Level0_Frozen.enbx" />
     <None Include="Resources\Level0_HiddenSwitch.enbx" />
     <None Include="Resources\Level0_NetworkLoop.enbx" />
     <None Include="Resources\Level0_NetworkLoop2.enbx" />
diff --git a/EduNetworkBuilder/NB.cs b/EduNetworkBuilder/NB.cs
index 366bd6d..ea45e37 100644
--- a/EduNetworkBuilder/NB.cs
+++ b/EduNetworkBuilder/NB.cs
@@ -67,7 +67,7 @@ namespace EduNetworkBuilder
     {
         Level0_IP, Level1_NoGateway, Level0_NeedsLink, Level0_NoSwitch, Level1_BadDHCP, Level1_BadGateway,
         Level0_SimpleDHCP, Level1_BadIP, Level0_Help, Level0_Ping, Level0_HubVsSwitch, Level0_Power,
-        Level0_NetworkLoop2, Level0_BrokenLink, Level0_HiddenSwitch,
+        Level0_NetworkLoop2, Level0_BrokenLink, Level0_HiddenSwitch, Level0_Frozen,
         Level0_PacketCorruption1, Level0_PacketCorruption2, Level0_Traceroute, Level1_AddingDevices,
         Level1_MidDHCP, Level1_OneNetTwoSubnets, Level1_DuplicateIPs, Level0_NetworkLoop, Level1_DuplicateMAC,
         Level1_BadNetmask, Level1_VPNTraceroute,
diff --git a/EduNetworkBuilder/Properties/Resources.Designer.cs b/EduNetworkBuilder/Properties/Resources.Designer.cs
index 858c075..d5dc6c5 100644
--- a/EduNetworkBuilder/Properties/Resources.Designer.cs
+++ b/EduNetworkBuilder/Properties/Resources.Designer.cs
@@ -251,6 +251,16 @@ namespace EduNetworkBuilder.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized resource of type System.Byte[].
+        /// </summary>
+        internal static byte[] Level0_Frozen {
+            get {
+                object obj = ResourceManager.GetObject("Level0_Frozen", resourceCulture);
+                return ((byte[])(obj));
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized resource of type System.Byte[].
         /// </summary>
diff --git a/EduNetworkBuilder/Properties/Resources.resx b/EduNetworkBuilder/Properties/Resources.resx
index 58e6552..a4f44d7 100644
--- a/EduNetworkBuilder/Properties/Resources.resx
+++ b/EduNetworkBuilder/Properties/Resources.resx
@@ -496,4 +496,7 @@
   <data name="BurnMark" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\BurnMark.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="Level0_Frozen" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Level0_Frozen.enbx;System.Byte[], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/EduNetworkBuilder/Resources/Level0_Frozen.enbx b/EduNetworkBuilder/Resources/Level0_Frozen.enbx
new file mode 100644
index 0000000..9948f84
--- /dev/null
+++ b/EduNetworkBuilder/Resources/Level0_Frozen.enbx
@@ -0,0 +1,611 @@
+<?xml version="1.0" encoding="utf-8"?>
+<EduNetworkBuilder>
+  <!--This is a network file for EduNetworkBuilder.-->
+  <Network>
+    <en_message>Every once in a while a piece of hardware will freeze up and needs to be rebooted.  
+
+Try pinging laptop1 from PC0 and see how the packet fails.  It does not get past the switch.
+
+Right-click the switch and power it off, then power it back on.  Now try pinging laptop1.</en_message>
+    <en_title>Frozen!</en_title>
+    <en_url />
+    <height>1024</height>
+    <width>1024</width>
+    <itemsize>100</itemsize>
+    <showlabels>host</showlabels>
+    <level>0</level>
+    <sortorder>3.5</sortorder>
+    <uniqueidentifier>130</uniqueidentifier>
+    <startinghelplevel>full</startinghelplevel>
+    <vlansenabled>True</vlansenabled>
+    <VLANPacketColors>False</VLANPacketColors>
+    <device>
+      <hostname>laptop0</hostname>
+      <size>100</size>
+      <uniqueidentifier>103</uniqueidentifier>
+      <location>559,560</location>
+      <mytype>laptop</mytype>
+      <isdns>False</isdns>
+      <isdhcp>False</isdhcp>
+      <gateway>
+        <ip>192.168.1.1</ip>
+        <mask>255.255.255.0</mask>
+        <gateway>0.0.0.0</gateway>
+        <type>gw</type>
+      </gateway>
+      <nic>
+        <nictype>lo</nictype>
+        <nicname>lo0</nicname>
+        <myid>
+          <hostid>103</hostid>
+          <nicid>104</nicid>
+          <hostname>laptop0</hostname>
+          <nicname>lo0</nicname>
+        </myid>
+        <nictype>lo</nictype>
+        <uniqueidentifier>104</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>lo0</nicname>
+          <myip>
+            <ip>127.0.0.1</ip>
+            <mask>255.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>eth</nictype>
+        <nicname>eth0</nicname>
+        <myid>
+          <hostid>103</hostid>
+          <nicid>105</nicid>
+          <hostname>laptop0</hostname>
+          <nicname>eth0</nicname>
+        </myid>
+        <nictype>eth</nictype>
+        <uniqueidentifier>105</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>eth0</nicname>
+          <myip>
+            <ip>192.168.1.3</ip>
+            <mask>255.255.255.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+    </device>
+    <device>
+      <hostname>laptop1</hostname>
+      <size>100</size>
+      <uniqueidentifier>123</uniqueidentifier>
+      <location>680,160</location>
+      <mytype>laptop</mytype>
+      <isdns>False</isdns>
+      <isdhcp>False</isdhcp>
+      <gateway>
+        <ip>192.168.2.1</ip>
+        <mask>255.255.255.0</mask>
+        <gateway>0.0.0.0</gateway>
+        <type>gw</type>
+      </gateway>
+      <nic>
+        <nictype>lo</nictype>
+        <nicname>lo0</nicname>
+        <myid>
+          <hostid>123</hostid>
+          <nicid>124</nicid>
+          <hostname>laptop1</hostname>
+          <nicname>lo0</nicname>
+        </myid>
+        <nictype>lo</nictype>
+        <uniqueidentifier>124</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>lo0</nicname>
+          <myip>
+            <ip>127.0.0.1</ip>
+            <mask>255.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>eth</nictype>
+        <nicname>eth0</nicname>
+        <myid>
+          <hostid>123</hostid>
+          <nicid>125</nicid>
+          <hostname>laptop1</hostname>
+          <nicname>eth0</nicname>
+        </myid>
+        <nictype>eth</nictype>
+        <uniqueidentifier>125</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>eth0</nicname>
+          <myip>
+            <ip>192.168.2.2</ip>
+            <mask>255.255.255.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+    </device>
+    <device>
+      <hostname>net_switch0</hostname>
+      <size>100</size>
+      <uniqueidentifier>109</uniqueidentifier>
+      <location>400,320</location>
+      <mytype>net_switch</mytype>
+      <isdns>False</isdns>
+      <isdhcp>False</isdhcp>
+      <gateway>
+        <ip>192.168.1.1</ip>
+        <mask>255.255.255.0</mask>
+        <gateway>0.0.0.0</gateway>
+        <type>gw</type>
+      </gateway>
+      <nic>
+        <nictype>lo</nictype>
+        <nicname>lo0</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>110</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>lo0</nicname>
+        </myid>
+        <nictype>lo</nictype>
+        <uniqueidentifier>110</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>lo0</nicname>
+          <myip>
+            <ip>127.0.0.1</ip>
+            <mask>255.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>management_interface</nictype>
+        <nicname>management_interface0</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>111</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>management_interface0</nicname>
+        </myid>
+        <nictype>management_interface</nictype>
+        <uniqueidentifier>111</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>management_interface0</nicname>
+          <myip>
+            <ip>192.168.1.4</ip>
+            <mask>255.255.255.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>port</nictype>
+        <nicname>port1</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>112</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>port1</nicname>
+        </myid>
+        <nictype>port</nictype>
+        <uniqueidentifier>112</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>port1</nicname>
+          <myip>
+            <ip>0.0.0.0</ip>
+            <mask>0.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>port</nictype>
+        <nicname>port2</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>113</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>port2</nicname>
+        </myid>
+        <nictype>port</nictype>
+        <uniqueidentifier>113</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>port2</nicname>
+          <myip>
+            <ip>0.0.0.0</ip>
+            <mask>0.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>port</nictype>
+        <nicname>port3</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>114</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>port3</nicname>
+        </myid>
+        <nictype>port</nictype>
+        <uniqueidentifier>114</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>port3</nicname>
+          <myip>
+            <ip>0.0.0.0</ip>
+            <mask>0.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>port</nictype>
+        <nicname>port4</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>115</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>port4</nicname>
+        </myid>
+        <nictype>port</nictype>
+        <uniqueidentifier>115</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>port4</nicname>
+          <myip>
+            <ip>0.0.0.0</ip>
+            <mask>0.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>port</nictype>
+        <nicname>port5</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>116</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>port5</nicname>
+        </myid>
+        <nictype>port</nictype>
+        <uniqueidentifier>116</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>port5</nicname>
+          <myip>
+            <ip>0.0.0.0</ip>
+            <mask>0.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>port</nictype>
+        <nicname>port6</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>117</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>port6</nicname>
+        </myid>
+        <nictype>port</nictype>
+        <uniqueidentifier>117</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>port6</nicname>
+          <myip>
+            <ip>0.0.0.0</ip>
+            <mask>0.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>port</nictype>
+        <nicname>port7</nicname>
+        <myid>
+          <hostid>109</hostid>
+          <nicid>118</nicid>
+          <hostname>net_switch0</hostname>
+          <nicname>port7</nicname>
+        </myid>
+        <nictype>port</nictype>
+        <uniqueidentifier>118</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>port7</nicname>
+          <myip>
+            <ip>0.0.0.0</ip>
+            <mask>0.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+    </device>
+    <device>
+      <hostname>pc0</hostname>
+      <size>100</size>
+      <uniqueidentifier>100</uniqueidentifier>
+      <location>246,560</location>
+      <mytype>pc</mytype>
+      <isdns>False</isdns>
+      <isdhcp>False</isdhcp>
+      <gateway>
+        <ip>192.168.1.1</ip>
+        <mask>255.255.255.0</mask>
+        <gateway>0.0.0.0</gateway>
+        <type>gw</type>
+      </gateway>
+      <nic>
+        <nictype>lo</nictype>
+        <nicname>lo0</nicname>
+        <myid>
+          <hostid>100</hostid>
+          <nicid>101</nicid>
+          <hostname>pc0</hostname>
+          <nicname>lo0</nicname>
+        </myid>
+        <nictype>lo</nictype>
+        <uniqueidentifier>101</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>lo0</nicname>
+          <myip>
+            <ip>127.0.0.1</ip>
+            <mask>255.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>eth</nictype>
+        <nicname>eth0</nicname>
+        <myid>
+          <hostid>100</hostid>
+          <nicid>102</nicid>
+          <hostname>pc0</hostname>
+          <nicname>eth0</nicname>
+        </myid>
+        <nictype>eth</nictype>
+        <uniqueidentifier>102</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>eth0</nicname>
+          <myip>
+            <ip>192.168.1.2</ip>
+            <mask>255.255.255.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+    </device>
+    <device>
+      <hostname>router0</hostname>
+      <size>100</size>
+      <uniqueidentifier>119</uniqueidentifier>
+      <location>400,160</location>
+      <mytype>router</mytype>
+      <isdns>False</isdns>
+      <isdhcp>False</isdhcp>
+      <gateway>
+        <ip>0.0.0.0</ip>
+        <mask>0.0.0.0</mask>
+        <gateway>0.0.0.0</gateway>
+        <type>gw</type>
+      </gateway>
+      <nic>
+        <nictype>lo</nictype>
+        <nicname>lo0</nicname>
+        <myid>
+          <hostid>119</hostid>
+          <nicid>120</nicid>
+          <hostname>router0</hostname>
+          <nicname>lo0</nicname>
+        </myid>
+        <nictype>lo</nictype>
+        <uniqueidentifier>120</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>lo0</nicname>
+          <myip>
+            <ip>127.0.0.1</ip>
+            <mask>255.0.0.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>eth</nictype>
+        <nicname>eth0</nicname>
+        <myid>
+          <hostid>119</hostid>
+          <nicid>121</nicid>
+          <hostname>router0</hostname>
+          <nicname>eth0</nicname>
+        </myid>
+        <nictype>eth</nictype>
+        <uniqueidentifier>121</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>eth0</nicname>
+          <myip>
+            <ip>192.168.1.1</ip>
+            <mask>255.255.255.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+      <nic>
+        <nictype>eth</nictype>
+        <nicname>eth1</nicname>
+        <myid>
+          <hostid>119</hostid>
+          <nicid>122</nicid>
+          <hostname>router0</hostname>
+          <nicname>eth1</nicname>
+        </myid>
+        <nictype>eth</nictype>
+        <uniqueidentifier>122</uniqueidentifier>
+        <usesdhcp>False</usesdhcp>
+        <interface>
+          <nicname>eth1</nicname>
+          <myip>
+            <ip>192.168.2.1</ip>
+            <mask>255.255.255.0</mask>
+            <gateway>0.0.0.0</gateway>
+            <type>ip</type>
+          </myip>
+          <VLAN
+            ID="1">Untagged</VLAN>
+        </interface>
+      </nic>
+    </device>
+    <link>
+      <SrcNic>
+        <hostid>100</hostid>
+        <nicid>102</nicid>
+        <hostname>pc0</hostname>
+        <nicname>eth0</nicname>
+      </SrcNic>
+      <DstNic>
+        <hostid>109</hostid>
+        <nicid>112</nicid>
+        <hostname>net_switch0</hostname>
+        <nicname>port1</nicname>
+      </DstNic>
+      <hostname>pc0_link_net_switch0</hostname>
+      <linktype>normal</linktype>
+      <uniqueidentifier>126</uniqueidentifier>
+    </link>
+    <link>
+      <SrcNic>
+        <hostid>103</hostid>
+        <nicid>105</nicid>
+        <hostname>laptop0</hostname>
+        <nicname>eth0</nicname>
+      </SrcNic>
+      <DstNic>
+        <hostid>109</hostid>
+        <nicid>113</nicid>
+        <hostname>net_switch0</hostname>
+        <nicname>port2</nicname>
+      </DstNic>
+      <hostname>laptop0_link_net_switch0</hostname>
+      <linktype>normal</linktype>
+      <uniqueidentifier>127</uniqueidentifier>
+    </link>
+    <link>
+      <SrcNic>
+        <hostid>109</hostid>
+        <nicid>114</nicid>
+        <hostname>net_switch0</hostname>
+        <nicname>port3</nicname>
+      </SrcNic>
+      <DstNic>
+        <hostid>119</hostid>
+        <nicid>121</nicid>
+        <hostname>router0</hostname>
+        <nicname>eth0</nicname>
+      </DstNic>
+      <hostname>net_switch0_link_router0</hostname>
+      <linktype>normal</linktype>
+      <uniqueidentifier>128</uniqueidentifier>
+    </link>
+    <link>
+      <SrcNic>
+        <hostid>119</hostid>
+        <nicid>122</nicid>
+        <hostname>router0</hostname>
+        <nicname>eth1</nicname>
+      </SrcNic>
+      <DstNic>
+        <hostid>123</hostid>
+        <nicid>125</nicid>
+        <hostname>laptop1</hostname>
+        <nicname>eth0</nicname>
+      </DstNic>
+      <hostname>router0_link_laptop1</hostname>
+      <linktype>normal</linktype>
+      <uniqueidentifier>129</uniqueidentifier>
+    </link>
+    <nettest>
+      <shost>net_switch0</shost>
+      <dhost>net_switch0</dhost>
+      <thetest>DeviceIsFrozen</thetest>
+    </nettest>
+    <nettest>
+      <shost>pc0</shost>
+      <dhost>laptop1</dhost>
+      <thetest>SuccessfullyPings</thetest>
+    </nettest>
+    <VLANName
+      ID="1"
+      Color="Blue">Default</VLANName>
+  </Network>
+</EduNetworkBuilder>
\ No newline at end of file