I have a RadCheckboxList In an ASP Panel. When Enabling/Disabling the panel the CheckBoxList does not Enable/Disable.  I tested this with a simple mock up with additional controls that work as expected:

<asp:Panel ID="TestPanel" runat="server" Enabled="true">

<telerik:RadCheckBoxList ID="WeeklyDays" runat="server" Columns="4" AutoPostBack="false">

<Items>

<telerik:ButtonListItem Text="Monday" Value="2" />

<telerik:ButtonListItem Text="Tuesday" Value="4" />

<telerik:ButtonListItem Text="Wednesday" Value="8" />

<telerik:ButtonListItem Text="Thursday" Value="16" />

<telerik:ButtonListItem Text="Friday" Value="32" />

<telerik:ButtonListItem Text="Saturday" Value="64" />

<telerik:ButtonListItem Text="Sunday" Value="1" Selected="true" />

</Items>

</telerik:RadCheckBoxList>

<telerik:RadTextBox ID="TestText" runat="server"></telerik:RadTextBox>

<telerik:RadDatePicker ID="TestDate" runat="server"></telerik:RadDatePicker>

</asp:Panel>

<br />

<telerik:RadCheckBox ID="ToggleEnabled" runat="server" Text="Toggle Panel" AutoPostBack="true" Checked="true" OnCheckedChanged="ToggleEnabled_CheckedChanged"></telerik:RadCheckBox>

 protected voidToggleEnabled_CheckedChanged(objectsender, EventArgs e)