ASP.NET UpdatePanel Not Working

I have two dropdown lists and one is in an update panel (AJAX). while debugging I noticed that every time the index is changed the Page_Load method is called and never hit the method that is supposed to run. Im not to sure what too sure what is going on or maby I am missing something. I have read in the docs that update panels dont work well with validation controls but my validation controls are outside of the panels so i dont see how this could be the issue Im lost for ideas Here are the two drop down lists and update panel:
<div class="form-group"> 02 <asp:Label runat="server" AssociatedControlID="ddlFaculty" CssClass="col-md-2 control-label">Faculty</asp:Label> 03 <div class="col-md-10"> 04 <asp:DropDownList runat="server" EnableViewState=&qu ...