Dear community members.

I tried my first installation of Umbraco on my dev machine according to this article:
https://our.umbraco.org/documentation/installation/install-umbraco-with-nuget

I’ve been able to install it without errors.

But now I cannot log-in to the backend because of a session timeout.
After some seconds of loading it shows this message:

The UmbracoTraceLog.txt shows a successful login:
2015-05-19 14:35:16,710 [7] INFO  Umbraco.Core.Security.UmbracoMembershipProviderBase - [Thread 61] Login attempt succeeded for username [email protected] from IP address ::12015-05-19 14:35:16,863 [7] INFO  Umbraco.Web.Security.WebSecurity - [Thread 61] User Id: 0 logged in

Version of Umbraco is 7.2.5

Maybe someone has a hint on how I can resolve this?

Thanks a lot in advance.
Best Regards
Tinu