Resetting IIS Credentials
WhatsUpGold_User account is created during the installation process. This account is used for the identity of the WhatsUp Gold application pool in IIS as well as the account with rights to the WhatsUp virtual directory. This user should be added to the Local Administrators group and should not be removed. NOTE: This issue can sometimes be caused by a Group Policy Object (also known as a “GPO”) applied on your domain which has removed or altered the WhatsUpGold_User account on the WhatsUP Gold server.