If I am logged in on one computer as a certain user, then go to a new computer and new browser and log on as the same user and select the option to log out that user from other sessions, when I go back to the first browser, I get the below error (at least in SF 4.2)

I think it's because the browser thinks it's logged in but the back-end session has been deleted.  Is this right?  And how do I fix it? Can't be throwing an error on the site just because of this.

Thanks!

Ben

Server Error in '/' Application.

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Unable to cast object of type 'System.Web.Security.RolePrincipal' to type 'Telerik.Sitefinity.Security.SitefinityPrincipal'.

[InvalidCastException: Unable to cast object of type 'System.Web.Security.RolePrincipal' to type 'Telerik.Sitefinity.Security.SitefinityPrincipal'.]
   Telerik.Sitefinity.Web.SiteMapBase.IsAccessibleToUser(HttpContext context, SiteMapNode node) +78
   Telerik.Sitefinity.Web.SitefinitySiteMap.IsAccessibleToUser(HttpContext context, SiteMapNode node) +19
   System.Web.SiteMapNode.IsAccessibleToUser(HttpContext context) +17
   Telerik.Sitefinity.Web.SitefinityRoute.CheckSecurity(HttpContextBase httpContext, PageSiteNode node) +40
   Telerik.Sitefinity.Web.SitefinityRoute.GetRouteData(HttpContextBase httpContext) +396
   System.Web.Routing.RouteCollection.GetRouteData(HttpContextBase httpContext) +287
   System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context) +60
   System.Web.Routing.UrlRoutingModule.OnApplicationPostResolveRequestCache(Object sender, EventArgs e) +86
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Hello Ben Alexandra,

Could you please provide some code for us so we could see what the problem might have been. I believe I understand the cause of the exception, but I'm not sure what to do in order to fix it unless I see some code.

There is no code.  Open 2 browsers (say FF & Chrome) to the same site and log in as a backend user in one, and once logged in browse around the site

Then go to the second browser and log in as the same user.  When it asks if you want to log out the same user in the other browser, say yes.  

Then go back to the first browser and try to keep browsing and you'll see that error message

Hi Ben Alexandra,

I wasn't able to reproduce the issue. When I come back to the first browser I get the expected error message:

"User already logged on a different computer"

Could you give us more details about your setup - enabled JavaScript, cookeits, etc.