I have installed SDL Tridion 2013 on Windows 2008 R2 SP1 with IIS 7.5 on AWS environment, and followed every step as mentioned in the installation manual. But after successfull installation I am not able to login to the CMS from the browser as it is not accepting the username and password (We have tried with credentials of “MTS User” and a user with administrator rights.) and it is showing the error below:
Http Error 401.1 - Unauthorized. You do not have permission to view this directory or page using the credentials you supplied