I Have this issue running SQL Server 2008 and this message was in the log:

"Login failed for user '%'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors"

I could not use any other login except by the login that was used to install SQL Server. So the solution was:

1) Login in the server with the same account used to setup SQL Sever.

2) Open management studio

3) Run -- GRANT CONTROL SERVER TO "my login" for each user that you want to grant rights in the server.

This worked for me.

Bye

Eduardo Pin