BCS Authentication issues Login failed for user NT Authority\ANONYMOUS LOGON or access denied by Business Data Connectivity

http://niranjanrao.wordpress.com/2012/01/12/bcs-authentication-issues-login-failed-for-user-nt-authorityanonymous-logon-or-access-denied-by-bcs/

Poweshell Script to enable Revert To Self on Server

$bdc = Get-SPServiceApplication | where {$_ -match “Business Data Connectivity Service”};
$bdc.RevertToSelfAllowed = $true;
$bdc.Update();