Today, for the first time, I am unable to log onto my website at http://thwvwc.org.  That is to say, I complete the login panel, with no errors, as the Administrator, the page is repainted; but the Admin controls or any other role is displayed.  The following is the entry from the event log, directly from the SQL database.

I am not sure what is happening as the same non-role is displayed if I use any other login credentials. 

What could cause this condition?

<LogProperties><LogProperty><PropertyName>AssemblyVersion</PropertyName><PropertyValue>6.2.3</PropertyValue></LogProperty><LogProperty><PropertyName>PortalID</PropertyName><PropertyValue>0</PropertyValue></LogProperty><LogProperty><PropertyName>PortalName</PropertyName><PropertyValue>The Villages Woodshop</PropertyValue></LogProperty><LogProperty><PropertyName>UserID</PropertyName><PropertyValue>-1</PropertyValue></LogProperty><LogProperty><PropertyName>UserName</PropertyName><PropertyValue /></LogProperty><LogProperty><PropertyName>ActiveTabID</PropertyName><PropertyValue>41</PropertyValue></LogProperty><LogProperty><PropertyName>ActiveTabName</PropertyName><PropertyValue>Home</PropertyValue></LogProperty><LogProperty><PropertyName>RawURL</PropertyName><PropertyValue>/vwc/register.aspx?returnurl=http%3A%2F%2Fwww.thevwc.org%2Fvwc%2FCertification.aspx</PropertyValue></LogProperty><LogProperty><PropertyName>AbsoluteURL</PropertyName><PropertyValue>/vwc/Default.aspx</PropertyValue></LogProperty><LogProperty><PropertyName>AbsoluteURLReferrer</PropertyName><PropertyValue /></LogProperty><LogProperty><PropertyName>UserAgent</PropertyName><PropertyValue>Mozilla/5.0 (compatible; AhrefsBot/5.0; +http://ahrefs.com/robot/)</PropertyValue></LogProperty><LogProperty><PropertyName>DefaultDataProvider</PropertyName><PropertyValue>DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider</PropertyValue></LogProperty><LogProperty><PropertyName>ExceptionGUID</PropertyName><PropertyValue>166e4e36-99d3-4c05-bfcf-564c00903766</PropertyValue></LogProperty><LogProperty><PropertyName>InnerException</PropertyName><PropertyValue>That assembly does not allow partially trusted callers.</PropertyValue></LogProperty><LogProperty><PropertyName>FileName</PropertyName><PropertyValue /></LogProperty><LogProperty><PropertyName>FileLineNumber</PropertyName><PropertyValue>0</PropertyValue></LogProperty><LogProperty><PropertyName>FileColumnNumber</PropertyName><PropertyValue>0</PropertyValue></LogProperty><LogProperty><PropertyName>Method</PropertyName><PropertyValue>ASP.desktopmodules_admin_security_register_ascx.__BuildControlrecaptcha</PropertyValue></LogProperty><LogProperty><PropertyName>StackTrace</PropertyName><PropertyValue /></LogProperty><LogProperty><PropertyName>Message</PropertyName><PropertyValue>System.Security.SecurityException: That assembly does not allow partially trusted callers.     at ASP.desktopmodules_admin_security_register_ascx.__BuildControlrecaptcha()     at ASP.desktopmodules_admin_security_register_ascx.__BuildControlTree(desktopmodules_admin_security_register_ascx __ctrl)     at ASP.desktopmodules_admin_security_register_ascx.FrameworkInitialize()     at System.Web.UI.UserControl.InitializeAsUserControlInternal()     at System.Web.UI.TemplateControl.LoadControl(IWebObjectFactory objectFactory, VirtualPath virtualPath, Type t, Object[] parameters)     at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath)     at System.Web.UI.TemplateControl.LoadControl(String virtualPath)     at DotNetNuke.UI.ControlUtilities.LoadControl[T](TemplateControl containerControl, String ControlSrc)     at DotNetNuke.UI.Modules.WebFormsModuleControlFactory.CreateModuleControl(TemplateControl containerControl, ModuleInfo moduleConfiguration)     at DotNetNuke.UI.Modules.ModuleControlFactory.LoadModuleControl(TemplateControl containerControl, ModuleInfo moduleConfiguration)     at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl()  The action that failed was:  LinkDemand  The Zone of the assembly that failed was:  MyComputer</PropertyValue></LogProperty><LogProperty><PropertyName>Source</PropertyName><PropertyValue /></LogProperty></LogProperties>

Sebastian,

Thank you for your information.  I am unable to change the trust level as the ISP, Network Solutions, has locked down this capability.  However, I did a little bit more checking and find that the issue is one only with Firefox, Release 32.  There is no issue with using Internet Explorer 11, or with Safari 5.1.7. 

So, I am not sure what is happening.  I will be uninstalling Firefox Release 32.0.1 and re-installing Release 30 to see if the issue is only with the latest release.