When launching the Notification Server console at http://localhost/altiris/console or http://FQDN/altiris/console under any login would trigger the generic console error page.
The logs contained errors when opening the console that referenced the "header.aspx" as shown below:
HTTP Request failed:
/Altiris/Console/Default.aspx
Error executing child request for Header.aspx.
\Program Files\Altiris\CustomConsole\Web\Header.aspx(24): error CS0103: The name 'PageTitle' does not exist in the current context
ITMS 8.x
1. Open in notepad: C:\Program Files\Altiris\CustomConsole\Web\Header.aspx
2. Delete this section:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title><%= PageTitle %></title>
3. Replace with:
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
4. Save the header.aspx file
5. Perform IIS reset and restart altiris service.
6. Relaunch Internet explorer and open new console session.